MongoDB on Ubuntu
This post shows how to install, configure, and use MongoDB with JavaScript programs. You need to complete each section in the order provided (based on Cherry Server post).
Step #1: MongoDB Installation
Install the prerequisite packages with the following command:
sudo apt install -y software-properties-common gnupg apt-transport-https ca-certificates |
Display detailed console log →
Reading package lists... Done Building dependency tree... Done Reading state information... Done ca-certificates is already the newest version (20230311ubuntu0.22.04.1). ca-certificates set to manually installed. gnupg is already the newest version (2.2.27-3ubuntu2.1). gnupg set to manually installed. software-properties-common is already the newest version (0.99.22.9). apt-transport-https is already the newest version (2.4.11). 0 upgraded, 0 newly installed, 0 to remove and 22 not upgraded. |
Import the public key for MongoDB on your system using the curl command:
curl -fsSL https://pgp.mongodb.com/server-7.0.asc | sudo gpg -o /usr/share/keyrings/mongodb-server-7.0.gpg --dearmor |
Add MongoDB 7.0 APT repository to the /etc/apt/sources.list.d directory:
echo "deb [ arch=amd64,arm64 signed-by=/usr/share/keyrings/mongodb-server-7.0.gpg ] https://repo.mongodb.org/apt/ubuntu jammy/mongodb-org/7.0 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-7.0.list |
Reload the local package index, which refreshes the local repositories and makes Ubuntu aware of the newly added MongoDB repository:
sudo apt update |
Display detailed console log →
Hit:1 http://us.archive.ubuntu.com/ubuntu jammy InRelease Get:2 http://us.archive.ubuntu.com/ubuntu jammy-updates InRelease [119 kB] Get:3 http://security.ubuntu.com/ubuntu jammy-security InRelease [110 kB] Hit:4 https://dl.google.com/linux/chrome/deb stable InRelease Hit:5 https://download.vscodium.com/debs vscodium InRelease Hit:6 http://us.archive.ubuntu.com/ubuntu jammy-backports InRelease Hit:7 https://ftp.postgresql.org/pub/pgadmin/pgadmin4/apt/jammy pgadmin4 InRelease Ign:8 https://repo.mongodb.org/apt/ubuntu jammy/mongodb-org/7.0 InRelease Get:9 https://repo.mongodb.org/apt/ubuntu jammy/mongodb-org/7.0 Release [2,090 B] Get:10 https://repo.mongodb.org/apt/ubuntu jammy/mongodb-org/7.0 Release.gpg [866 B] Get:11 https://repo.mongodb.org/apt/ubuntu jammy/mongodb-org/7.0/multiverse arm64 Packages [27.6 kB] Get:12 https://repo.mongodb.org/apt/ubuntu jammy/mongodb-org/7.0/multiverse amd64 Packages [28.6 kB] Fetched 288 kB in 4s (72.8 kB/s) Reading package lists... Done Building dependency tree... Done Reading state information... Done 22 packages can be upgraded. Run 'apt list --upgradable' to see them. |
Install the mongodb-org meta-package:
sudo apt install -y mongodb-org |
Display detailed console log →
Reading package lists... Done Building dependency tree... Done Reading state information... Done The following additional packages will be installed: mongodb-database-tools mongodb-mongosh mongodb-org-database mongodb-org-database-tools-extra mongodb-org-mongos mongodb-org-server mongodb-org-shell mongodb-org-tools The following NEW packages will be installed: mongodb-database-tools mongodb-mongosh mongodb-org mongodb-org-database mongodb-org-database-tools-extra mongodb-org-mongos mongodb-org-server mongodb-org-shell mongodb-org-tools 0 upgraded, 9 newly installed, 0 to remove and 22 not upgraded. Need to get 163 MB of archives. After this operation, 537 MB of additional disk space will be used. Get:1 https://repo.mongodb.org/apt/ubuntu jammy/mongodb-org/7.0/multiverse amd64 mongodb-database-tools amd64 100.9.4 [51.9 MB] Get:2 https://repo.mongodb.org/apt/ubuntu jammy/mongodb-org/7.0/multiverse amd64 mongodb-mongosh amd64 2.1.5 [48.7 MB] Get:3 https://repo.mongodb.org/apt/ubuntu jammy/mongodb-org/7.0/multiverse amd64 mongodb-org-shell amd64 7.0.6 [2,986 B] Get:4 https://repo.mongodb.org/apt/ubuntu jammy/mongodb-org/7.0/multiverse amd64 mongodb-org-server amd64 7.0.6 [36.7 MB] Get:5 https://repo.mongodb.org/apt/ubuntu jammy/mongodb-org/7.0/multiverse amd64 mongodb-org-mongos amd64 7.0.6 [25.6 MB] Get:6 https://repo.mongodb.org/apt/ubuntu jammy/mongodb-org/7.0/multiverse amd64 mongodb-org-database-tools-extra amd64 7.0.6 [7,786 B] Get:7 https://repo.mongodb.org/apt/ubuntu jammy/mongodb-org/7.0/multiverse amd64 mongodb-org-database amd64 7.0.6 [3,422 B] Get:8 https://repo.mongodb.org/apt/ubuntu jammy/mongodb-org/7.0/multiverse amd64 mongodb-org-tools amd64 7.0.6 [2,770 B] Get:9 https://repo.mongodb.org/apt/ubuntu jammy/mongodb-org/7.0/multiverse amd64 mongodb-org amd64 7.0.6 [2,804 B] Fetched 163 MB in 8s (20.2 MB/s) Selecting previously unselected package mongodb-database-tools. (Reading database ... 250115 files and directories currently installed.) Preparing to unpack .../0-mongodb-database-tools_100.9.4_amd64.deb ... Unpacking mongodb-database-tools (100.9.4) ... Selecting previously unselected package mongodb-mongosh. Preparing to unpack .../1-mongodb-mongosh_2.1.5_amd64.deb ... Unpacking mongodb-mongosh (2.1.5) ... Selecting previously unselected package mongodb-org-shell. Preparing to unpack .../2-mongodb-org-shell_7.0.6_amd64.deb ... Unpacking mongodb-org-shell (7.0.6) ... Selecting previously unselected package mongodb-org-server. Preparing to unpack .../3-mongodb-org-server_7.0.6_amd64.deb ... Unpacking mongodb-org-server (7.0.6) ... Selecting previously unselected package mongodb-org-mongos. Preparing to unpack .../4-mongodb-org-mongos_7.0.6_amd64.deb ... Unpacking mongodb-org-mongos (7.0.6) ... Selecting previously unselected package mongodb-org-database-tools-extra. Preparing to unpack .../5-mongodb-org-database-tools-extra_7.0.6_amd64.deb ... Unpacking mongodb-org-database-tools-extra (7.0.6) ... Selecting previously unselected package mongodb-org-database. Preparing to unpack .../6-mongodb-org-database_7.0.6_amd64.deb ... Unpacking mongodb-org-database (7.0.6) ... Selecting previously unselected package mongodb-org-tools. Preparing to unpack .../7-mongodb-org-tools_7.0.6_amd64.deb ... Unpacking mongodb-org-tools (7.0.6) ... Selecting previously unselected package mongodb-org. Preparing to unpack .../8-mongodb-org_7.0.6_amd64.deb ... Unpacking mongodb-org (7.0.6) ... Setting up mongodb-mongosh (2.1.5) ... Setting up mongodb-org-server (7.0.6) ... Adding system user `mongodb' (UID 132) ... Adding new user `mongodb' (UID 132) with group `nogroup' ... Not creating home directory `/home/mongodb'. Adding group `mongodb' (GID 140) ... Done. Adding user `mongodb' to group `mongodb' ... Adding user mongodb to group mongodb Done. Setting up mongodb-org-shell (7.0.6) ... Setting up mongodb-database-tools (100.9.4) ... Setting up mongodb-org-mongos (7.0.6) ... Setting up mongodb-org-database-tools-extra (7.0.6) ... Setting up mongodb-org-database (7.0.6) ... Setting up mongodb-org-tools (7.0.6) ... Setting up mongodb-org (7.0.6) ... Processing triggers for man-db (2.10.2-1) ... |
Verify the installed version of MongoDB with this command:
mongod --version |
It should display:
db version v7.0.6
Build Info: {
"version": "7.0.6",
"gitVersion": "66cdc1f28172cb33ff68263050d73d4ade73b9a4",
"openSSLVersion": "OpenSSL 3.0.2 15 Mar 2022",
"modules": [],
"allocator": "tcmalloc",
"environment": {
"distmod": "ubuntu2204",
"distarch": "x86_64",
"target_arch": "x86_64"
}
} |
Step #2: Start MongoDB Service & Shell
You can verify that the installed mongodb is disabled after initial installation with this command:
sudo systemctl status mongod |
It should display:
○ mongod.service - MongoDB Database Server
Loaded: loaded (/lib/systemd/system/mongod.service; disabled; vendor preset: enabled)
Active: inactive (dead)
Docs: https://docs.mongodb.org/manual |
Exit the output display from the systemctl utility by typing the escape key, a colon (:) and a q in sequence.
You can start the MongoDB service with this command:
sudo systemctl start mongod |
Then, check the MongoDB service:
sudo systemctl status mongod |
It displays:
● mongod.service - MongoDB Database Server
Loaded: loaded (/lib/systemd/system/mongod.service; disabled; vendor preset: enabled)
Active: active (running) since Thu 2024-03-07 16:38:17 MST; 2s ago
Docs: https://docs.mongodb.org/manual
Main PID: 33795 (mongod)
Memory: 79.2M
CPU: 706ms
CGroup: /system.slice/mongod.service
└─33795 /usr/bin/mongod --config /etc/mongod.conf
Mar 07 16:38:17 student-virtual-machine systemd[1]: Started MongoDB Database Server.
Mar 07 16:38:17 student-virtual-machine mongod[33795]: {"t":{"$date":"2024-03-07T23:38:17.642Z"},"s"> |
You can confirm that the database is up and running by checking if the server is listening on its default port, which is port 27017. Run the ss command to check the port number.
sudo ss -pnltu | grep 27017 |
It will display:
tcp LISTEN 0 4096 127.0.0.1:27017 0.0.0.0:* users:(("mongod",pid=33795,fd=14)) |
You can enable the mongodb service at startup with the following command:
sudo systemctl enable mongod |
It raised the following error:
Created symlink /etc/systemd/system/multi-user.target.wants/mongod.service → /lib/systemd/system/mongod.service. |
Now, start the MongoDB Shell (mongosh) by typing either the explicit or implicit MongoDB Shell command. The explicit one uses the port and database path, which are unnecessary when you’ve successfully started the mongosh service. (Please note that at the time of writing this blog post there is erroneous, or obsolete, content on the MongoDB Documentation Enable Access Control web page.
Explicit connection:
mongosh --port 27017 --db /var/lib/mongodb --help |
This version of the command will display most of the options available in MongoDB but it will suppress warning messages.
$ mongosh [options] [db address] [file names (ending in .js or .mongodb)] Options: -h, --help Show this usage information -f, --file [arg] Load the specified mongosh script --host [arg] Server to connect to --port [arg] Port to connect to --build-info Show build information --version Show version information --quiet Silence output from the shell during the connection process --shell Run the shell after executing files --nodb Don't connect to mongod on startup - no 'db address' [arg] expected --norc Will not run the '.mongoshrc.js' file on start up --eval [arg] Evaluate javascript --json[=canonical|relaxed] Print result of --eval as Extended JSON, including errors --retryWrites[=true|false] Automatically retry write operations upon transient network errors (Default: true) Authentication Options: -u, --username [arg] Username for authentication -p, --password [arg] Password for authentication --authenticationDatabase [arg] User source (defaults to dbname) --authenticationMechanism [arg] Authentication mechanism --awsIamSessionToken [arg] AWS IAM Temporary Session Token ID --gssapiServiceName [arg] Service name to use when authenticating using GSSAPI/Kerberos --sspiHostnameCanonicalization [arg] Specify the SSPI hostname canonicalization (none or forward, available on Windows) --sspiRealmOverride [arg] Specify the SSPI server realm (available on Windows) TLS Options: --tls Use TLS for all connections --tlsCertificateKeyFile [arg] PEM certificate/key file for TLS --tlsCertificateKeyFilePassword [arg] Password for key in PEM file for TLS --tlsCAFile [arg] Certificate Authority file for TLS --tlsAllowInvalidHostnames Allow connections to servers with non-matching hostnames --tlsAllowInvalidCertificates Allow connections to servers with invalid certificates --tlsCertificateSelector [arg] TLS Certificate in system store (Windows and macOS only) --tlsCRLFile [arg] Specifies the .pem file that contains the Certificate Revocation List --tlsDisabledProtocols [arg] Comma separated list of TLS protocols to disable [TLS1_0,TLS1_1,TLS1_2] --tlsUseSystemCA Load the operating system trusted certificate list --tlsFIPSMode Enable the system TLS library's FIPS mode API version options: --apiVersion [arg] Specifies the API version to connect with --apiStrict Use strict API version mode --apiDeprecationErrors Fail deprecated commands for the specified API version FLE Options: --awsAccessKeyId [arg] AWS Access Key for FLE Amazon KMS --awsSecretAccessKey [arg] AWS Secret Key for FLE Amazon KMS --awsSessionToken [arg] Optional AWS Session Token ID --keyVaultNamespace [arg] database.collection to store encrypted FLE parameters --kmsURL [arg] Test parameter to override the URL of the KMS endpoint DB Address Examples: foo Foo database on local machine 192.168.0.5/foo Foo database on 192.168.0.5 machine 192.168.0.5:9999/foo Foo database on 192.168.0.5 machine on port 9999 mongodb://192.168.0.5:9999/foo Connection string URI can also be used File Names: A list of files to run. Files must end in .js and will exit after unless --shell is specified. Examples: Start mongosh using 'ships' database on specified connection string: $ mongosh mongodb://192.168.0.5:9999/ships For more information on usage: https://docs.mongodb.com/mongodb-shell. |
Implicit connection:
mongosh |
You should see the following message with any warning messages:
Current Mongosh Log ID: 65ea502a97f4c1e2b7e12af4 Connecting to: mongodb://127.0.0.1:27017/?directConnection=true&serverSelectionTimeoutMS=2000&appName=mongosh+2.1.5 Using MongoDB: 7.0.6 Using Mongosh: 2.1.5 For mongosh info see: https://docs.mongodb.com/mongodb-shell/ To help improve our products, anonymous usage data is collected and sent to MongoDB periodically (https://www.mongodb.com/legal/privacy-policy). You can opt-out by running the disableTelemetry() command. ------ The server generated these startup warnings when booting 2024-03-07T16:38:17.818-07:00: Using the XFS filesystem is strongly recommended with the WiredTiger storage engine. See http://dochub.mongodb.org/core/prodnotes-filesystem 2024-03-07T16:38:18.350-07:00: Access control is not enabled for the database. Read and write access to data and configuration is unrestricted 2024-03-07T16:38:18.350-07:00: vm.max_map_count is too low ------ |
You can run opt out of the data collection by running the disableTelemetry() command from the Linux command line. Use the following command (a broader explanation is in the MongoDB Telemetry documentation):
mongosh --nodb --eval "disableTelemetry()" |
It should return:
Current Mongosh Log ID: 65eab2df3e663bde3711fa2f Using Mongosh: 2.1.5 For mongosh info see: https://docs.mongodb.com/mongodb-shell/ Telemetry is now disabled. |
You still have three warning messages to deal with at this point. You should fix the vm.max_map_count warning first. This is a Linux kernel issue. You can determine the current value of the vm.max_map_count value with this command:
cat /proc/sys/vm/max_map_count |
It should return the system default value:
65530 |
You can change it at runtime with this command:
sudo sysctl -w vm.max_map_count=262144 |
However, you must restart the mongod service to see the change in the mongosh shell. There won’t be a warning message for the kernel parameter value being too low until you reboot your operating system. You can restart your mongod service with this command:
sudo service mongod restart |
You can make a change to the /etc/sysctl.conf file to ensure the parameter is set to the correct value each time the system reboots. Simply add the following line as the root user or by using the sudo prefacing a text editor or your choice (like vim or nano) to your /etc/sysctl.conf file:
# Adding vm.max_map_count to sysctl.conf defaults. vm.max_map_count=262144 |
At this point, you’ve eliminated two of the warning messages. The next step shows you how to enable Access Control. If you want to check the general server status, run the following command from the Linux Command-Line Interface (CLI):
mongosh --eval "db.serverStatus()" > server_status.log |
You can inspect the log file, which should be slightly less than 2,000 lines of output with MongoDB a 7.0.6 installation. Using the command from the Linux CLI is generally the easiest way to inspect the output from the db.serverStatus() function, which is just too long to scroll from the console output.
Step #3: MongoDB Enabling Access Control
Connect to the mongosh …
Step #4: MongoDB Installing Node.js and React.js
Install Node.js with the following command:
sudo apt install -y nodejs |
Display detailed console log →
Reading package lists... Done Building dependency tree... Done Reading state information... Done The following additional packages will be installed: libc-ares2 libjs-highlight.js libnode72 nodejs-doc Suggested packages: npm The following NEW packages will be installed: libc-ares2 libjs-highlight.js libnode72 nodejs nodejs-doc 0 upgraded, 5 newly installed, 0 to remove and 23 not upgraded. Need to get 13.7 MB of archives. After this operation, 53.9 MB of additional disk space will be used. Do you want to continue? [Y/n] y Get:1 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 libjs-highlight.js all 9.18.5+dfsg1-1 [367 kB] Get:2 http://us.archive.ubuntu.com/ubuntu jammy-updates/main amd64 libc-ares2 amd64 1.18.1-1ubuntu0.22.04.3 [45.1 kB] Get:3 http://us.archive.ubuntu.com/ubuntu jammy-updates/universe amd64 libnode72 amd64 12.22.9~dfsg-1ubuntu3.4 [10.8 MB] Get:4 http://us.archive.ubuntu.com/ubuntu jammy-updates/universe amd64 nodejs-doc all 12.22.9~dfsg-1ubuntu3.4 [2,410 kB] Get:5 http://us.archive.ubuntu.com/ubuntu jammy-updates/universe amd64 nodejs amd64 12.22.9~dfsg-1ubuntu3.4 [122 kB] Fetched 13.7 MB in 3s (4,006 kB/s) Selecting previously unselected package libjs-highlight.js. (Reading database ... 250172 files and directories currently installed.) Preparing to unpack .../libjs-highlight.js_9.18.5+dfsg1-1_all.deb ... Unpacking libjs-highlight.js (9.18.5+dfsg1-1) ... Selecting previously unselected package libc-ares2:amd64. Preparing to unpack .../libc-ares2_1.18.1-1ubuntu0.22.04.3_amd64.deb ... Unpacking libc-ares2:amd64 (1.18.1-1ubuntu0.22.04.3) ... Selecting previously unselected package libnode72:amd64. Preparing to unpack .../libnode72_12.22.9~dfsg-1ubuntu3.4_amd64.deb ... Unpacking libnode72:amd64 (12.22.9~dfsg-1ubuntu3.4) ... Selecting previously unselected package nodejs-doc. Preparing to unpack .../nodejs-doc_12.22.9~dfsg-1ubuntu3.4_all.deb ... Unpacking nodejs-doc (12.22.9~dfsg-1ubuntu3.4) ... Selecting previously unselected package nodejs. Preparing to unpack .../nodejs_12.22.9~dfsg-1ubuntu3.4_amd64.deb ... Unpacking nodejs (12.22.9~dfsg-1ubuntu3.4) ... Setting up libc-ares2:amd64 (1.18.1-1ubuntu0.22.04.3) ... Setting up libnode72:amd64 (12.22.9~dfsg-1ubuntu3.4) ... Setting up libjs-highlight.js (9.18.5+dfsg1-1) ... Setting up nodejs (12.22.9~dfsg-1ubuntu3.4) ... update-alternatives: using /usr/bin/nodejs to provide /usr/bin/js (js) in auto m ode Setting up nodejs-doc (12.22.9~dfsg-1ubuntu3.4) ... Processing triggers for man-db (2.10.2-1) ... Processing triggers for libc-bin (2.35-0ubuntu3.6) ... |
You can check the Node.js version with this command:
node -v |
v12.22.9 |
Install the Node.js package manager npm with the following command:
sudo apt install -y npm |
Display detailed console log →
Reading package lists... Done Building dependency tree... Done Reading state information... Done The following additional packages will be installed: gyp libjs-events libjs-inherits libjs-is-typedarray libjs-psl libjs-source-map libjs-sprintf-js libjs-typedarray-to-buffer libnode-dev libuv1-dev node-abab node-abbrev node-agent-base node-ansi-regex node-ansi-styles node-ansistyles node-aproba node-archy node-are-we-there-yet node-argparse node-arrify node-asap node-asynckit node-balanced-match node-brace-expansion node-builtins node-cacache node-chalk node-chownr node-clean-yaml-object node-cli-table node-clone node-color-convert node-color-name node-colors node-columnify node-combined-stream node-commander node-console-control-strings node-copy-concurrently node-core-util-is node-coveralls node-cssom node-cssstyle node-debug node-decompress-response node-defaults node-delayed-stream node-delegates node-depd node-diff node-encoding node-end-of-stream node-err-code node-escape-string-regexp node-esprima node-events node-fancy-log node-fetch node-foreground-child node-form-data node-fs-write-stream-atomic node-fs.realpath node-function-bind node-gauge node-get-stream node-glob node-got node-graceful-fs node-growl node-gyp node-has-flag node-has-unicode node-hosted-git-info node-https-proxy-agent node-iconv-lite node-iferr node-imurmurhash node-indent-string node-inflight node-inherits node-ini node-ip node-ip-regex node-is-buffer node-is-plain-obj node-is-typedarray node-isarray node-isexe node-js-yaml node-jsdom node-json-buffer node-json-parse-better-errors node-jsonparse node-kind-of node-lcov-parse node-lodash-packages node-log-driver node-lowercase-keys node-lru-cache node-mime node-mime-types node-mimic-response node-minimatch node-minimist node-minipass node-mkdirp node-move-concurrently node-ms node-mute-stream node-negotiator node-nopt node-normalize-package-data node-npm-bundled node-npm-package-arg node-npmlog node-object-assign node-once node-opener node-osenv node-p-cancelable node-p-map node-path-is-absolute node-process-nextick-args node-promise-inflight node-promise-retry node-promzard node-psl node-pump node-punycode node-quick-lru node-read node-read-package-json node-readable-stream node-resolve node-retry node-rimraf node-run-queue node-safe-buffer node-semver node-set-blocking node-signal-exit node-slash node-slice-ansi node-source-map node-source-map-support node-spdx-correct node-spdx-exceptions node-spdx-expression-parse node-spdx-license-ids node-sprintf-js node-ssri node-stack-utils node-stealthy-require node-string-decoder node-string-width node-strip-ansi node-supports-color node-tap node-tap-mocha-reporter node-tap-parser node-tar node-text-table node-time-stamp node-tmatch node-tough-cookie node-typedarray-to-buffer node-unique-filename node-universalify node-util-deprecate node-validate-npm-package-license node-validate-npm-package-name node-wcwidth.js node-webidl-conversions node-whatwg-fetch node-which node-wide-align node-wrappy node-write-file-atomic node-ws node-yallist Suggested packages: libjs-angularjs node-nyc The following NEW packages will be installed: gyp libjs-events libjs-inherits libjs-is-typedarray libjs-psl libjs-source-map libjs-sprintf-js libjs-typedarray-to-buffer libnode-dev libuv1-dev node-abab node-abbrev node-agent-base node-ansi-regex node-ansi-styles node-ansistyles node-aproba node-archy node-are-we-there-yet node-argparse node-arrify node-asap node-asynckit node-balanced-match node-brace-expansion node-builtins node-cacache node-chalk node-chownr node-clean-yaml-object node-cli-table node-clone node-color-convert node-color-name node-colors node-columnify node-combined-stream node-commander node-console-control-strings node-copy-concurrently node-core-util-is node-coveralls node-cssom node-cssstyle node-debug node-decompress-response node-defaults node-delayed-stream node-delegates node-depd node-diff node-encoding node-end-of-stream node-err-code node-escape-string-regexp node-esprima node-events node-fancy-log node-fetch node-foreground-child node-form-data node-fs-write-stream-atomic node-fs.realpath node-function-bind node-gauge node-get-stream node-glob node-got node-graceful-fs node-growl node-gyp node-has-flag node-has-unicode node-hosted-git-info node-https-proxy-agent node-iconv-lite node-iferr node-imurmurhash node-indent-string node-inflight node-inherits node-ini node-ip node-ip-regex node-is-buffer node-is-plain-obj node-is-typedarray node-isarray node-isexe node-js-yaml node-jsdom node-json-buffer node-json-parse-better-errors node-jsonparse node-kind-of node-lcov-parse node-lodash-packages node-log-driver node-lowercase-keys node-lru-cache node-mime node-mime-types node-mimic-response node-minimatch node-minimist node-minipass node-mkdirp node-move-concurrently node-ms node-mute-stream node-negotiator node-nopt node-normalize-package-data node-npm-bundled node-npm-package-arg node-npmlog node-object-assign node-once node-opener node-osenv node-p-cancelable node-p-map node-path-is-absolute node-process-nextick-args node-promise-inflight node-promise-retry node-promzard node-psl node-pump node-punycode node-quick-lru node-read node-read-package-json node-readable-stream node-resolve node-retry node-rimraf node-run-queue node-safe-buffer node-semver node-set-blocking node-signal-exit node-slash node-slice-ansi node-source-map node-source-map-support node-spdx-correct node-spdx-exceptions node-spdx-expression-parse node-spdx-license-ids node-sprintf-js node-ssri node-stack-utils node-stealthy-require node-string-decoder node-string-width node-strip-ansi node-supports-color node-tap node-tap-mocha-reporter node-tap-parser node-tar node-text-table node-time-stamp node-tmatch node-tough-cookie node-typedarray-to-buffer node-unique-filename node-universalify node-util-deprecate node-validate-npm-package-license node-validate-npm-package-name node-wcwidth.js node-webidl-conversions node-whatwg-fetch node-which node-wide-align node-wrappy node-write-file-atomic node-ws node-yallist npm 0 upgraded, 182 newly installed, 0 to remove and 23 not upgraded. Need to get 5,075 kB of archives. After this operation, 36.3 MB of additional disk space will be used. Get:1 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 gyp all 0.1+20210831gitd6c5dd5-5 [238 kB] Get:2 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 libjs-events all 3.3.0+~3.0.0-2 [9,734 B] Get:3 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 libjs-is-typedarray all 1.0.0-4 [3,804 B] Get:4 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 libjs-psl all 1.8.0+ds-6 [76.3 kB] Get:5 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 libjs-sprintf-js all 1.1.2+ds1+~1.1.2-1 [12.8 kB] Get:6 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 libjs-typedarray-to-buffer all 4.0.0-2 [4,658 B] Get:7 http://us.archive.ubuntu.com/ubuntu jammy-updates/main amd64 libuv1-dev amd64 1.43.0-1ubuntu0.1 [130 kB] Get:8 http://us.archive.ubuntu.com/ubuntu jammy-updates/universe amd64 libnode-dev amd64 12.22.9~dfsg-1ubuntu3.4 [609 kB] Get:9 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-abab all 2.0.5-2 [6,578 B] Get:10 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-ms all 2.1.3+~cs0.7.31-2 [5,782 B] Get:11 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-debug all 4.3.2+~cs4.1.7-1 [17.6 kB] Get:12 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-yallist all 4.0.0+~4.0.1-1 [8,322 B] Get:13 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-lru-cache all 6.0.0+~5.1.1-1 [11.3 kB] Get:14 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-semver all 7.3.5+~7.3.8-1 [41.5 kB] Get:15 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-agent-base all 6.0.2+~cs5.4.2-1 [17.9 kB] Get:16 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-ansi-regex all 5.0.1-1 [4,984 B] Get:17 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-ansistyles all 0.1.3-5 [4,546 B] Get:18 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-aproba all 2.0.0-2 [5,620 B] Get:19 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-delegates all 1.0.0-3 [4,280 B] Get:20 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 libjs-inherits all 2.0.4-4 [3,468 B] Get:21 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-inherits all 2.0.4-4 [3,010 B] Get:22 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-core-util-is all 1.0.3-1 [4,066 B] Get:23 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-safe-buffer all 5.2.1+~cs2.1.2-2 [15.7 kB] Get:24 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-string-decoder all 1.3.0-5 [7,046 B] Get:25 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-process-nextick-args all 2.0.1-2 [3,730 B] Get:26 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-util-deprecate all 1.0.2-3 [4,202 B] Get:27 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-isarray all 2.0.5-3 [3,934 B] Get:28 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-readable-stream all 3.6.0+~cs3.0.0-1 [32.6 kB] Get:29 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-are-we-there-yet all 3.0.0+~1.1.0-1 [8,920 B] Get:30 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-arrify all 2.0.1-2 [3,610 B] Get:31 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-asap all 2.0.6+~2.0.0-1 [14.4 kB] Get:32 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-asynckit all 0.4.0-4 [10.6 kB] Get:33 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-builtins all 4.0.0-1 [3,860 B] Get:34 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-chownr all 2.0.0-1 [4,404 B] Get:35 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-fs.realpath all 1.0.0-2 [6,106 B] Get:36 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-wrappy all 1.0.2-2 [3,658 B] Get:37 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-once all 1.4.0-4 [4,708 B] Get:38 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-inflight all 1.0.6-2 [3,940 B] Get:39 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-balanced-match all 2.0.0-1 [4,910 B] Get:40 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-brace-expansion all 2.0.1-1 [7,458 B] Get:41 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-minimatch all 3.1.1+~3.0.5-1 [16.9 kB] Get:42 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-path-is-absolute all 2.0.0-2 [4,062 B] Get:43 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-glob all 7.2.1+~cs7.6.15-1 [131 kB] Get:44 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-graceful-fs all 4.2.4+repack-1 [12.5 kB] Get:45 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-mkdirp all 1.0.4+~1.0.2-1 [11.4 kB] Get:46 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-iferr all 1.0.2+~1.0.2-1 [4,610 B] Get:47 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-imurmurhash all 0.1.4+dfsg+~0.1.1-1 [8,510 B] Get:48 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-fs-write-stream-atomic all 1.0.10-5 [5,256 B] Get:49 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-rimraf all 3.0.2-1 [10.1 kB] Get:50 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-run-queue all 2.0.0-2 [5,092 B] Get:51 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-copy-concurrently all 1.0.5-8 [7,118 B] Get:52 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-move-concurrently all 1.0.1-4 [5,120 B] Get:53 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-escape-string-regexp all 4.0.0-2 [4,328 B] Get:54 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-indent-string all 4.0.0-2 [4,122 B] Get:55 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-p-map all 4.0.0+~3.1.0+~3.0.1-1 [8,058 B] Get:56 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-promise-inflight all 1.0.1+~1.0.0-1 [4,896 B] Get:57 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-ssri all 8.0.1-2 [19.6 kB] Get:58 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-unique-filename all 1.1.1+ds-1 [3,832 B] Get:59 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-cacache all 15.0.5+~cs13.9.21-3 [34.9 kB] Get:60 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-clean-yaml-object all 0.1.0-5 [4,718 B] Get:61 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-clone all 2.1.2-3 [8,344 B] Get:62 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-color-name all 1.1.4+~1.1.1-2 [6,076 B] Get:63 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-color-convert all 2.0.1-1 [10.2 kB] Get:64 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-colors all 1.4.0-3 [12.3 kB] Get:65 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-strip-ansi all 6.0.1-1 [4,184 B] Get:66 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-defaults all 1.0.3+~1.0.3-1 [4,288 B] Get:67 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-wcwidth.js all 1.0.2-1 [7,278 B] Get:68 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-columnify all 1.5.4+~1.5.1-1 [12.6 kB] Get:69 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-console-control-strings all 1.1.0-2 [5,428 B] Get:70 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-growl all 1.10.5-4 [7,064 B] Get:71 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-sprintf-js all 1.1.2+ds1+~1.1.2-1 [3,916 B] Get:72 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-argparse all 2.0.1-2 [33.2 kB] Get:73 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-esprima all 4.0.1+ds+~4.0.3-2 [69.3 kB] Get:74 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-js-yaml all 4.1.0+dfsg+~4.0.5-6 [62.7 kB] Get:75 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-lcov-parse all 1.0.0+20170612git80d039574ed9-5 [5,084 B] Get:76 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-log-driver all 1.2.7+git+20180219+bba1761737-7 [5,436 B] Get:77 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-is-plain-obj all 3.0.0-2 [3,994 B] Get:78 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-is-buffer all 2.0.5-2 [4,128 B] Get:79 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-kind-of all 6.0.3+dfsg-2 [8,628 B] Get:80 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-minimist all 1.2.5+~cs5.3.2-1 [9,434 B] Get:81 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-cssom all 0.4.4-3 [14.1 kB] Get:82 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-cssstyle all 2.3.0-2 [30.3 kB] Get:83 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-delayed-stream all 1.0.0-5 [5,464 B] Get:84 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-combined-stream all 1.0.8+~1.0.3-1 [7,432 B] Get:85 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-mime all 3.0.0+dfsg+~cs3.96.1-1 [38.1 kB] Get:86 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-mime-types all 2.1.33-1 [6,944 B] Get:87 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-form-data all 3.0.1-1 [13.4 kB] Get:88 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-events all 3.3.0+~3.0.0-2 [3,090 B] Get:89 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-https-proxy-agent all 5.0.0+~cs8.0.0-3 [16.4 kB] Get:90 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-iconv-lite all 0.6.3-2 [167 kB] Get:91 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-lodash-packages all 4.17.21+dfsg+~cs8.31.198.20210220-5 [166 kB] Get:92 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-stealthy-require all 1.1.1-5 [7,176 B] Get:93 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-punycode all 2.1.1-5 [9,902 B] Get:94 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-psl all 1.8.0+ds-6 [39.6 kB] Get:95 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-universalify all 2.0.0-3 [4,266 B] Get:96 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-tough-cookie all 4.0.0-2 [31.7 kB] Get:97 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-webidl-conversions all 7.0.0~1.1.0+~cs15.1.20180823-2 [27.5 kB] Get:98 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-commander all 9.0.0-2 [48.0 kB] Get:99 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-mute-stream all 0.0.8+~0.0.1-1 [6,448 B] Get:100 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-read all 1.0.7-3 [5,478 B] Get:101 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-ws all 8.5.0+~cs13.3.3-2 [49.5 kB] Get:102 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-jsdom all 19.0.0+~cs90.11.27-1 [446 kB] Get:103 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-fetch all 2.6.7+~2.5.12-1 [27.1 kB] Get:104 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-coveralls all 3.1.1-1 [14.2 kB] Get:105 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-mimic-response all 3.1.0-7 [5,430 B] Get:106 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-decompress-response all 6.0.0-2 [4,656 B] Get:107 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-diff all 5.0.0~dfsg+~5.0.1-3 [77.4 kB] Get:108 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-err-code all 2.0.3+dfsg-3 [4,918 B] Get:109 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-time-stamp all 2.2.0-1 [5,984 B] Get:110 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-fancy-log all 1.3.3+~cs1.3.1-2 [8,102 B] Get:111 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-signal-exit all 3.0.6+~3.0.1-1 [7,000 B] Get:112 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-foreground-child all 2.0.0-3 [5,542 B] Get:113 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-function-bind all 1.1.1+repacked+~1.0.3-1 [5,244 B] Get:114 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-has-unicode all 2.0.1-4 [3,948 B] Get:115 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-ansi-styles all 4.3.0+~4.2.0-1 [8,968 B] Get:116 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-slice-ansi all 5.0.0+~cs9.0.0-4 [8,044 B] Get:117 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-string-width all 4.2.3+~cs13.2.3-1 [11.4 kB] Get:118 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-wide-align all 1.1.3-4 [4,228 B] Get:119 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-gauge all 4.0.2-1 [16.3 kB] Get:120 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-end-of-stream all 1.4.4+~1.4.1-1 [5,340 B] Get:121 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-pump all 3.0.0-5 [5,160 B] Get:122 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-get-stream all 6.0.1-1 [7,324 B] Get:123 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-lowercase-keys all 2.0.0-2 [3,754 B] Get:124 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-json-buffer all 3.0.1-1 [3,812 B] Get:125 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-p-cancelable all 2.1.1-1 [7,358 B] Get:126 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-quick-lru all 5.1.1-1 [5,532 B] Get:127 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-got all 11.8.3+~cs58.7.37-1 [122 kB] Get:128 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-has-flag all 4.0.0-2 [4,228 B] Get:129 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-hosted-git-info all 4.0.2-1 [9,006 B] Get:130 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-ip all 1.1.5+~1.1.0-1 [8,140 B] Get:131 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-ip-regex all 4.3.0+~4.1.1-1 [5,254 B] Get:132 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-is-typedarray all 1.0.0-4 [2,072 B] Get:133 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-isexe all 2.0.0+~2.0.1-4 [6,102 B] Get:134 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-json-parse-better-errors all 1.0.2+~cs3.3.1-1 [7,328 B] Get:135 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-encoding all 0.1.13-2 [4,366 B] Get:136 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-jsonparse all 1.3.1-10 [8,060 B] Get:137 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-minipass all 3.1.6+~cs8.7.18-1 [32.9 kB] Get:138 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-npm-bundled all 1.1.2-1 [6,228 B] Get:139 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-osenv all 0.1.5+~0.1.0-1 [5,896 B] Get:140 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-validate-npm-package-name all 3.0.0-4 [5,058 B] Get:141 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-npm-package-arg all 8.1.5-1 [8,132 B] Get:142 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-object-assign all 4.1.1-6 [4,754 B] Get:143 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-opener all 1.5.2+~1.4.0-1 [6,000 B] Get:144 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-retry all 0.13.1+~0.12.1-1 [11.5 kB] Get:145 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-promise-retry all 2.0.1-2 [5,010 B] Get:146 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-promzard all 0.3.0-2 [6,888 B] Get:147 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-set-blocking all 2.0.0-2 [3,766 B] Get:148 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-slash all 3.0.0-2 [3,922 B] Get:149 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 libjs-source-map all 0.7.0++dfsg2+really.0.6.1-9 [93.9 kB] Get:150 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-source-map all 0.7.0++dfsg2+really.0.6.1-9 [33.6 kB] Get:151 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-source-map-support all 0.5.21+ds+~0.5.4-1 [14.2 kB] Get:152 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-spdx-license-ids all 3.0.11-1 [7,306 B] Get:153 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-spdx-exceptions all 2.3.0-2 [3,978 B] Get:154 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-spdx-expression-parse all 3.0.1+~3.0.1-1 [7,658 B] Get:155 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-spdx-correct all 3.1.1-2 [5,476 B] Get:156 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-stack-utils all 2.0.5+~2.0.1-1 [9,368 B] Get:157 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-supports-color all 8.1.1+~8.1.1-1 [7,048 B] Get:158 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-tap-parser all 7.0.0+ds1-6 [19.4 kB] Get:159 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-tap-mocha-reporter all 3.0.7+ds-2 [39.2 kB] Get:160 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-text-table all 0.2.0-4 [4,762 B] Get:161 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-tmatch all 5.0.0-4 [6,002 B] Get:162 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-typedarray-to-buffer all 4.0.0-2 [2,242 B] Get:163 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-validate-npm-package-license all 3.0.4-2 [4,252 B] Get:164 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-whatwg-fetch all 3.6.2-5 [15.0 kB] Get:165 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-write-file-atomic all 3.0.3+~3.0.2-1 [7,690 B] Get:166 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-abbrev all 1.1.1+~1.1.2-1 [5,784 B] Get:167 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-archy all 1.0.0-4 [4,728 B] Get:168 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-chalk all 4.1.2-1 [15.9 kB] Get:169 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-cli-table all 0.3.11+~cs0.13.3-1 [23.2 kB] Get:170 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-depd all 2.0.0-2 [10.5 kB] Get:171 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-nopt all 5.0.0-2 [11.3 kB] Get:172 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-npmlog all 6.0.1+~4.1.4-1 [9,968 B] Get:173 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-tar all 6.1.11+ds1+~cs6.0.6-1 [38.8 kB] Get:174 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-which all 2.0.2+~cs1.3.2-2 [7,374 B] Get:175 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-gyp all 8.4.1-1 [34.7 kB] Get:176 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-ini all 2.0.1-1 [6,528 B] Get:177 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-negotiator all 0.6.2+~0.6.1-1 [10.3 kB] Get:178 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-resolve all 1.20.0+~cs5.27.9-1 [20.7 kB] Get:179 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-normalize-package-data all 3.0.3+~2.4.1-1 [12.8 kB] Get:180 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-read-package-json all 4.1.1-1 [10.4 kB] Get:181 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 node-tap all 12.0.1+ds-4 [43.6 kB] Get:182 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 npm all 8.5.1~ds-1 [894 kB] Fetched 5,075 kB in 19s (272 kB/s) Extracting templates from packages: 100% Selecting previously unselected package gyp. 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Setting up node-move-concurrently (1.0.1-4) ... Setting up node-gauge (4.0.2-1) ... Setting up node-tap-mocha-reporter (3.0.7+ds-2) ... Setting up node-normalize-package-data (3.0.3+~2.4.1-1) ... Setting up node-ws (8.5.0+~cs13.3.3-2) ... Setting up node-jsdom (19.0.0+~cs90.11.27-1) ... Setting up node-tar (6.1.11+ds1+~cs6.0.6-1) ... Setting up node-tap (12.0.1+ds-4) ... Setting up node-npmlog (6.0.1+~4.1.4-1) ... Setting up node-cacache (15.0.5+~cs13.9.21-3) ... Setting up node-read-package-json (4.1.1-1) ... Setting up node-fetch (2.6.7+~2.5.12-1) ... Setting up node-gyp (8.4.1-1) ... Setting up npm (8.5.1~ds-1) ... Setting up node-coveralls (3.1.1-1) ... Processing triggers for man-db (2.10.2-1) ... |
You can check the Node.js version with this command:
npm -v |
8.5.1 |
As always, I hope this helps those looking for concise and complete free answer.
Parametric Queries
In 2021, I wrote a MySQL example for my class on the usefulness of Common Table Expressions (CTEs). When discussing the original post, I would comment on how you could extend the last example to build a parametric reporting table.
Somebody finally asked for a concrete example. So, this explains how to build a sample MySQL parametric query by leveraging a filter cross join and tests the parameter use with a Python script.
You can build this in any database you prefer but I used a studentdb database with the sakila sample database installed. I’ve granted privileges to both databases to the student user. The following SQL is required for the example:
-- Conditionally drop the levels table. DROP TABLE IF EXISTS levels; -- Create the levels list. CREATE TABLE levels ( level_id int unsigned primary key auto_increment , parameter_set enum('Three','Five') , description varchar(20) , min_roles int , max_roles int ); -- Insert values into the list table. INSERT INTO levels ( parameter_set , description , min_roles , max_roles ) VALUES ('Three','Hollywood Star', 30, 99999) ,('Three','Prolific Actor', 20, 29) ,('Three','Newcommer',1,19) ,('Five','Newcommer',1,9) ,('Five','Junior Actor',10,19) ,('Five','Professional Actor',20,29) ,('Five','Major Actor',30,39) ,('Five','Hollywood Star',40,99999); |
The sample lets you use the three or five value labels while filtering on any partial full_name value as the result of the query below:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | -- Query the data. WITH actors AS (SELECT a.actor_id , a.first_name , a.last_name , COUNT(*) AS num_roles FROM sakila.actor a INNER JOIN sakila.film_actor fa ON a.actor_id = fa.actor_id GROUP BY actor_id) SELECT CONCAT(a.last_name,', ',a.first_name) full_name , l.description , a.num_roles FROM actors a CROSS JOIN levels l WHERE a.num_roles BETWEEN l.min_roles AND l.max_roles AND l.parameter_set = 'Five' AND a.last_name LIKE CONCAT('H','%') ORDER BY a.last_name , a.first_name; |
They extends a concept exercise found in Chapter 9 on subqueries in Alan Beaulieu’s Learning SQL book.
This is the parametric Python program, which embeds the function locally (to make it easier for those who don’t write a lot of Python). You could set the PYTHONPATH to a relative src directory and import your function if you prefer.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 | #!/usr/bin/python # Import the libraries. import sys import mysql.connector from mysql.connector import errorcode # ============================================================ # Define function to check and replace arguments. def check_replace(argv): # Set defaults for incorrect parameter values. defaults = ("Three","_") # Declare empty list variables. inputs = [] args = () # Check whether or not parameters exist after file name. if isinstance(argv,list) and len(argv) != 0: # Check whether there are at least two parameters. if len(argv) >= 2: # Loop through available command-line arguments. for element in argv: # Check first of two parameter values and substitute # default value if input value is an invalid option. if len(inputs) == 0 and (element in ('Three','Five')) or \ len(inputs) == 1 and (isinstance(element,str)): inputs.append(element) elif len(inputs) == 0: inputs.append(defaults[0]) elif len(inputs) == 1: inputs.append(defaults[1]) # Assign arguments to parameters. args = (inputs) # Check whether only one parameter value exists. elif len(argv) == 1 and (argv[0] in ('Three','Five')): args = (argv[0],"_") # Assume only one parameter is valid and substitute an # empty string as the second parameter. else: args = (defaults[0],"_") # Substitute defaults when missing parameters. else: args = defaults # Return parameters as a tuple. return args # ============================================================ # Assign command-line argument list to variable by removing # the program file name. # ============================================================ params = check_replace(sys.argv[1:]) # ============================================================ # Attempt the query. # ============================================================ # Use a try-catch block to manage the connection. # ============================================================ try: # Open connection. cnx = mysql.connector.connect(user='student', password='student', host='127.0.0.1', database='studentdb') # Create cursor. cursor = cnx.cursor() # Set the query statement. query = ("WITH actors AS " "(SELECT a.first_name " " , a.last_name " " , COUNT(*) AS num_roles " " FROM sakila.actor a INNER JOIN sakila.film_actor fa " " ON a.actor_id = fa.actor_id " " GROUP BY a.first_name " " , a.last_name ) " " SELECT CONCAT(a.last_name,', ',a.first_name) AS full_name " " , l.description " " , a.num_roles " " FROM actors a CROSS JOIN levels l " " WHERE a.num_roles BETWEEN l.min_roles AND l.max_roles " " AND l.parameter_set = %s " " AND a.last_name LIKE CONCAT(%s,'%') " " ORDER BY a.last_name " " , a.first_name") # Execute cursor. cursor.execute(query, params) # Display the rows returned by the query. for (full_name, description, num_roles) in cursor: print('{0} is a {1} with {2} films.'.format( full_name.title() , description.title() , num_roles)) # Close cursor. cursor.close() # ------------------------------------------------------------ # Handle exception and close connection. except mysql.connector.Error as e: if e.errno == errorcode.ER_ACCESS_DENIED_ERROR: print("Something is wrong with your user name or password") elif e.errno == errorcode.ER_BAD_DB_ERROR: print("Database does not exist") else: print("Error code:", e.errno) # error number print("SQLSTATE value:", e.sqlstate) # SQLSTATE value print("Error message:", e.msg) # error message # Close the connection when the try block completes. else: cnx.close() |
As always, I hope this helps those trying to understand how CTEs can solve problems that would otherwise be coded in external imperative languages like Python.
Add PostGIS to PostgreSQL
The following blog post shows you how to add PostGIS and PgRouting to your existing install of PostgeSQL 14 on the Ubuntu Desktop, Version 22.0.4. This blog post relies on information in this earlier Install and Configure PostgreSQL on Ubuntu post. Generalized documentation on PostGIS exists at this URL.
You install the postgis libraries:
sudo apt install -y postgis |
Display detailed console log →
Reading package lists... Done Building dependency tree... Done Reading state information... Done The following additional packages will be installed: gdal-data libaec0 libaom3 libarmadillo10 libarpack2 libblosc1 libboost-serialization1.74.0 libcfitsio9 libcharls2 libdav1d5 libde265-0 libfreexl1 libfyba0 libgdal30 libgeos-c1v5 libgeos3.10.2 libgeotiff5 libgmpxx4ldbl libhdf4-0-alt libhdf5-103-1 libhdf5-hl-100 libheif1 libkmlbase1 libkmldom1 libkmlengine1 libminizip1 libnetcdf19 libodbc2 libodbcinst2 libogdi4.1 libproj22 libprotobuf-c1 libqhull-r8.0 librttopo1 libsfcgal1 libsnappy1v5 libspatialite7 libsuperlu5 libsz2 liburiparser1 libx265-199 libxerces-c3.2 postgis-doc postgresql-14-postgis-3 postgresql-14-postgis-3-scripts proj-bin proj-data unixodbc-common Suggested packages: geotiff-bin gdal-bin libgeotiff-epsg libhdf4-doc libhdf4-alt-dev hdf4-tools odbc-postgresql tdsodbc ogdi-bin The following NEW packages will be installed: gdal-data libaec0 libaom3 libarmadillo10 libarpack2 libblosc1 libboost-serialization1.74.0 libcfitsio9 libcharls2 libdav1d5 libde265-0 libfreexl1 libfyba0 libgdal30 libgeos-c1v5 libgeos3.10.2 libgeotiff5 libgmpxx4ldbl libhdf4-0-alt libhdf5-103-1 libhdf5-hl-100 libheif1 libkmlbase1 libkmldom1 libkmlengine1 libminizip1 libnetcdf19 libodbc2 libodbcinst2 libogdi4.1 libproj22 libprotobuf-c1 libqhull-r8.0 librttopo1 libsfcgal1 libsnappy1v5 libspatialite7 libsuperlu5 libsz2 liburiparser1 libx265-199 libxerces-c3.2 postgis postgis-doc postgresql-14-postgis-3 postgresql-14-postgis-3-scripts proj-bin proj-data unixodbc-common 0 upgraded, 49 newly installed, 0 to remove and 6 not upgraded. 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Setting up postgresql-14-postgis-3-scripts (3.2.0+dfsg-1ubuntu1) ... update-alternatives: using /usr/share/postgresql/14/extension/postgis-3.control to provide /usr/share/postg resql/14/extension/postgis.control (postgresql-14-postgis.control) in auto mode Setting up libprotobuf-c1:amd64 (1.3.3-1ubuntu2.1) ... Setting up libaec0:amd64 (1.0.6-1) ... Setting up gdal-data (3.4.1+dfsg-1build4) ... Setting up libgeotiff5:amd64 (1.7.0-2build1) ... Setting up libsnappy1v5:amd64 (1.1.8-1build3) ... Setting up libcfitsio9:amd64 (4.0.0-1) ... Setting up postgis-doc (3.2.0+dfsg-1ubuntu1) ... Setting up libgmpxx4ldbl:amd64 (2:6.2.1+dfsg-3ubuntu1) ... Setting up libgeos-c1v5:amd64 (3.10.2-1) ... Setting up unixodbc-common (2.3.9-5) ... Setting up libhdf4-0-alt (4.2.15-4) ... Setting up libx265-199:amd64 (3.5-2) ... Setting up libboost-serialization1.74.0:amd64 (1.74.0-14ubuntu3) ... Setting up libodbc2:amd64 (2.3.9-5) ... Setting up liburiparser1:amd64 (0.9.6+dfsg-1) ... Setting up librttopo1:amd64 (1.1.0-2) ... Setting up libfreexl1:amd64 (1.0.6-1) ... Setting up libfyba0:amd64 (4.1.1-7) ... Setting up libkmlbase1:amd64 (1.3.0-9) ... Setting up libblosc1:amd64 (1.21.1+ds2-2) ... Setting up libsfcgal1 (1.4.1-1) ... Setting up libdav1d5:amd64 (0.9.2-1) ... Setting up libde265-0:amd64 (1.0.8-1ubuntu0.1) ... Setting up libsz2:amd64 (1.0.6-1) ... Setting up libkmldom1:amd64 (1.3.0-9) ... Setting up libspatialite7:amd64 (5.0.1-2build2) ... Setting up libodbcinst2:amd64 (2.3.9-5) ... Setting up libarmadillo10 (1:10.8.2+dfsg-1) ... Setting up libkmlengine1:amd64 (1.3.0-9) ... Setting up libheif1:amd64 (1.12.0-2build1) ... Setting up proj-bin (8.2.1-1) ... Setting up libhdf5-103-1:amd64 (1.10.7+repack-4ubuntu2) ... Setting up libhdf5-hl-100:amd64 (1.10.7+repack-4ubuntu2) ... Setting up libnetcdf19:amd64 (1:4.8.1-1) ... Setting up libgdal30 (3.4.1+dfsg-1build4) ... Setting up postgresql-14-postgis-3 (3.2.0+dfsg-1ubuntu1) ... Setting up postgis (3.2.0+dfsg-1ubuntu1) ... Processing triggers for postgresql-common (238) ... Building PostgreSQL dictionaries from installed myspell/hunspell packages... en_us Removing obsolete dictionary files: Processing triggers for libc-bin (2.35-0ubuntu3.6) ... Processing triggers for man-db (2.10.2-1) ... |
You install the postgresql-14-pgrouting libraries:
sudo apt install -y postgresql-14-pgrouting |
Display detailed console log →
Reading package lists... Done Building dependency tree... Done Reading state information... Done The following additional packages will be installed: postgresql-14-pgrouting-scripts Suggested packages: postgresql-14-pgrouting-doc The following NEW packages will be installed: postgresql-14-pgrouting postgresql-14-pgrouting-scripts 0 upgraded, 2 newly installed, 0 to remove and 6 not upgraded. Need to get 705 kB of archives. After this operation, 4,314 kB of additional disk space will be used. Get:1 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 postgresql-14-pgrouting-scripts all 3.3.0-2 [46.3 kB] Get:2 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 postgresql-14-pgrouting amd64 3.3.0-2 [659 kB] Fetched 705 kB in 1s (721 kB/s) Selecting previously unselected package postgresql-14-pgrouting-scripts. (Reading database ... 250431 files and directories currently installed.) Preparing to unpack .../postgresql-14-pgrouting-scripts_3.3.0-2_all.deb ... Unpacking postgresql-14-pgrouting-scripts (3.3.0-2) ... Selecting previously unselected package postgresql-14-pgrouting. Preparing to unpack .../postgresql-14-pgrouting_3.3.0-2_amd64.deb ... Unpacking postgresql-14-pgrouting (3.3.0-2) ... Setting up postgresql-14-pgrouting-scripts (3.3.0-2) ... Setting up postgresql-14-pgrouting (3.3.0-2) ... Processing triggers for postgresql-common (238) ... Building PostgreSQL dictionaries from installed myspell/hunspell packages... en_us Removing obsolete dictionary files: |
You should also install ogr2ogr program, which is a command-line utility for converting data between GIS data formats, including common file formats and common spatial databases. You install the ogr2ogr libraries:
sudo apt install -y gdal-bin |
Display detailed console log →
Reading package lists... Done Building dependency tree... Done Reading state information... Done The following additional packages will be installed: python3-gdal python3-numpy Suggested packages: libgdal-grass python-numpy-doc python3-pytest The following NEW packages will be installed: gdal-bin python3-gdal python3-numpy 0 upgraded, 3 newly installed, 0 to remove and 11 not upgraded. Need to get 4,381 kB of archives. After this operation, 24.9 MB of additional disk space will be used. Get:1 http://us.archive.ubuntu.com/ubuntu jammy-updates/main amd64 python3-numpy amd64 1:1.21.5-1ubuntu22.04.1 [3,467 kB] Get:2 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 python3-gdal amd64 3.4.1+dfsg-1build4 [673 kB] Get:3 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 gdal-bin amd64 3.4.1+dfsg-1build4 [241 kB] Fetched 4,381 kB in 1s (2,965 kB/s) Selecting previously unselected package python3-numpy. (Reading database ... 249006 files and directories currently installed.) Preparing to unpack .../python3-numpy_1%3a1.21.5-1ubuntu22.04.1_amd64.deb ... Unpacking python3-numpy (1:1.21.5-1ubuntu22.04.1) ... Selecting previously unselected package python3-gdal. Preparing to unpack .../python3-gdal_3.4.1+dfsg-1build4_amd64.deb ... Unpacking python3-gdal (3.4.1+dfsg-1build4) ... Selecting previously unselected package gdal-bin. Preparing to unpack .../gdal-bin_3.4.1+dfsg-1build4_amd64.deb ... Unpacking gdal-bin (3.4.1+dfsg-1build4) ... Setting up python3-numpy (1:1.21.5-1ubuntu22.04.1) ... Setting up python3-gdal (3.4.1+dfsg-1build4) ... Setting up gdal-bin (3.4.1+dfsg-1build4) ... Processing triggers for man-db (2.10.2-1) ... |
Verify the installation by using the which utility, like
which -a ogr2ogr |
It should return:
/usr/bin/ogr2ogr |
You can qualify the installed PostGIS packages with the following command:
dpkg -l | grep -i postgis |
It should display:
ii postgis 3.2.0+dfsg-1ubuntu1 amd64 Geographic objects support for PostgreSQL ii postgis-doc 3.2.0+dfsg-1ubuntu1 all Geographic objects support for PostgreSQL -- documentation ii postgresql-14-pgrouting 3.3.0-2 amd64 Routing functionality support for PostgreSQL/PostGIS ii postgresql-14-pgrouting-scripts 3.3.0-2 all Routing functionality support for PostgreSQL/PostGIS - SQL scripts ii postgresql-14-postgis-3 3.2.0+dfsg-1ubuntu1 amd64 Geographic objects support for PostgreSQL 14 ii postgresql-14-postgis-3-scripts 3.2.0+dfsg-1ubuntu1 all Geographic objects support for PostgreSQL 14 -- SQL scripts |
Connect as the postgres user by becoming the root user with this command:
sudo sh |
Then, assume the role of the postgres user with this command:
su - postgres |
Connect to the PostgreSQL database as the privileged postgres owner/user:
psql postgres |
You will see the following prompt after connecting to the PostgreSQL database:
postgres@student-virtual-machine:~$ psql psql (14.10 (Ubuntu 14.10-0ubuntu0.22.04.1)) Type "help" for help. postgres=# |
As the the privileged postgres owner/user issue the following commands to create the gisdb database and set a new search path for it:
CREATE DATABASE gisdb; ALTER DATABASE gisdb SET search_path=public,postgis,contrib,tiger; |
Connect to the gisdb database:
\connect gisdb |
You are now connected to database gisdb as the postgres user. You change to the postgis schema, and create the following extensions in this schema.
CREATE SCHEMA postgis; CREATE EXTENSION postgis SCHEMA postgis; CREATE EXTENSION postgis_raster SCHEMA postgis; CREATE EXTENSION fuzzystrmatch SCHEMA postgis; CREATE EXTENSION address_standardizer_data_us SCHEMA postgis; |
You query the modified catalog with this query:
SELECT n.nspname AS "Name" , pg_catalog.pg_get_userbyid(n.nspowner) AS "Owner" FROM pg_catalog.pg_namespace n WHERE n.nspname !~ '^pg_' AND n.nspname <> 'information_schema' ORDER BY 1; |
It should return:
Name | Owner ---------+---------- postgis | postgres public | postgres (2 rows) |
You must assign the postgis_tiger_geocoder and postgis_topology without a schema assignment. The
postgis_tiger_eeocoder must be assigned by default to the tiger schema, and the postgis_topology schema.
CREATE EXTENSION postgis_tiger_geocoder; CREATE EXTENSION postgis_topology; |
You reuse the same above referenced query to see the modified catalog with this query:
It should return:
Name | Owner ------------+---------- postgis | postgres public | postgres tiger | postgres tiger_data | postgres topology | postgres (5 rows) |
Connect as the gisdb database with this command:
\connect gisdb |
You can see the active PostGIS extension with this command:
\dx postgis |
It shows:
List of installed extensions Name | Version | Schema | Description ---------+---------+---------+------------------------------------------------------------ postgis | 3.2.0 | postgis | PostGIS geometry and geography spatial types and functions (1 row) |
Now, you can use this query:
SELECT postgis_full_version(); |
to discover what PostGIS version is installed:
postgis_full_version -------------------------------------------------------------------------------------------------------------------------------------------------------------------- POSTGIS="3.2.0 c3e3cc0" [EXTENSION] PGSQL="140" GEOS="3.10.2-CAPI-1.16.0" PROJ="8.2.1" LIBXML="2.9.12" LIBJSON="0.15" LIBPROTOBUF="1.3.3" WAGYU="0.5.0 (Internal)" (1 row) |
Connect back to as the privileged postgres owner/user with this command:
\connect postgres |
Next, check the available databases with this command:
\l |
It should display the following:
List of databases
Name | Owner | Encoding | Collate | Ctype | Access privileges
-----------+----------+----------+-------------+-------------+-----------------------
gisdb | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 |
postgres | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 |
template0 | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
template1 | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
videodb | student | UTF8 | en_US.UTF-8 | en_US.UTF-8 | =Tc/student +
| | | | | student=CTc/student +
| | | | | dba=CTc/student
(5 rows) |
As the privileged postgres owner/user make the following grants with these commands:
GRANT TEMPORARY, CONNECT ON DATABASE gisdb TO PUBLIC; GRANT ALL PRIVILEGES ON DATABASE gisdb TO postgres; GRANT ALL PRIVILEGES ON DATABASE gisdb TO dba; |
After making the grants, check the available databases access with this \l command:
\l |
It should display the following:
List of databases
Name | Owner | Encoding | Collate | Ctype | Access privileges
-----------+----------+----------+-------------+-------------+-----------------------
gisdb | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 | =Tc/postgres +
| | | | | postgres=CTc/postgres+
| | | | | dba=CTc/postgres
postgres | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 |
template0 | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
template1 | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
videodb | student | UTF8 | en_US.UTF-8 | en_US.UTF-8 | =Tc/student +
| | | | | student=CTc/student +
| | | | | dba=CTc/student
(5 rows) |
At this point, you can exit psql, the postgres user’s account, and the root user’s account. This should return you to your sudoer account, which in my case is the student user.
Connect to the gisdb with the following command-line interface command:
psql -U student -W -d gisdb |
You can create the following, as per instructions in PostGIS Chapter 9 instructions:
-- Conditionally drop table. DROP TABLE IF EXISTS geometries; -- Create table with geometry column in table. CREATE TABLE geometries ( geometries_id INT , name VARCHAR , geometry_obj GEOMETRY); INSERT INTO geometries ( name , geometry_obj ) VALUES ('Point', 'POINT(0 0)') ,('Linestring', 'LINESTRING(0 0, 1 1, 2 1, 2 2)') ,('Polygon', 'POLYGON((0 0, 1 0, 1 1, 0 1, 0 0))') ,('PolygonWithHole', 'POLYGON((0 0, 10 0, 10 10, 0 10, 0 0),(1 1, 1 2, 2 2, 2 1, 1 1))') ,('Collection', 'GEOMETRYCOLLECTION(POINT(2 0),POLYGON((0 0, 1 0, 1 1, 0 1, 0 0)))'); SELECT name , ST_AsText(geometry_obj) FROM geometries; |
Unfortunately, it raises the following error when attempting to create the geometries table:
psql:/home/student/Code/postgis/geometry.sql:7: ERROR: type "geometry" does not exist LINE 4: , geometry_obj GEOMETRY); |
As always, I hope the solutions presented helps move forward implementations of the technology. You can also find an excellent tutorial to learning PostGIS in the Introduction to PostGIS tutorial.
Sqlite on Ubuntu
We decided to include some existing Sqlite databases in our AWS Ubuntu learning lab because they’re used by the Data Science courses (specifically, DS 250). Installing Sqlite is quite simple:
sudo apt install -y sqlite |
You can check the install by using the which utility, like:
which -a sqlite3 |
On Ubuntu, it should return:
/usr/bin/sqlite3 |
There is a friendly help document online that can provide insight in how to use Sqlite. You can create a new student.db database with the following syntax from the Ubuntu CLI (Command-Line Interface):
sqlite3 student.db |
It would return the following:
SQLite version 3.37.2 2022-01-06 13:25:41 Enter ".help" FOR usage hints. sqlite> |
A little warning about the simple example and how it opens only a transient in-memory database. If you want a persistent database, you must open sqlite3 without any arguments. Then, you must use the .open method to open a persistent student.db database create a file in the relative directory path where you launched sqlite3 executable. You can read more about persistent in Sqlite in the documentation.
.open student.db |
The alternative opens the student.db file in a fully qualified path:
.open /home/student/Code/sqlite/db/student.db |
If you type .databases at the sqlite> prompt it would return:
sqlite> .databases main: /home/student/Code/sqlite/db/student.db r/w |
Let’s create a script file that creates two tables, a foreign key reference from one of the tables to the other, and some data with the following create_sample.sql script:
-- Drop knight table if exists. DROP TABLE IF EXISTS knight; -- Drop kingdom table if exists. DROP TABLE IF EXISTS kingdom; -- Create normalized table kingdom CREATE TABLE kingdom ( kingdom_id INTEGER PRIMARY KEY , kingdom_name VARCHAR(20) , population INTEGER , book VARCHAR(40)); -- Insert kingdom into table. INSERT INTO kingdom ( kingdom_id , kingdom_name , population , book ) VALUES ( 1, 'Narnia', 42100, 'Prince Caspian' ) ,( 2, 'Narnia', 77600, 'The Lion, The Witch and The Wardrobe' ) ,( 3, 'Camelot', 15200, 'The Once and Future King' ); -- Create normalized knight table. CREATE TABLE knight ( knight_id INTEGER PRIMARY KEY , knight_name VARCHAR(22) , kingdom_allegiance_id INTEGER , allegiance_start_date text , allegiance_end_date text , book VARCHAR(40) , FOREIGN KEY (kingdom_allegiance_id) REFERENCES kingdom(kingdom_id)); -- Insert knights into table. INSERT INTO knight ( knight_id , knight_name , kingdom_allegiance_id , allegiance_start_date , allegiance_end_date , book ) VALUES ( 1, 'Peter the Magnificent', 2, '1272-03-20', '1292-06-19', 'The Lion, The Witch and The Wardrobe' ) ,( 2, 'Edmund the Just', 2, '1272-03-20', '1292-06-19', 'The Lion, The Witch and The Wardrobe' ) ,( 3, 'Susan the Gentle', 2, '1272-03-20', '1292-06-19', 'The Lion, The Witch and The Wardrobe' ) ,( 4, 'Lucy the Valiant', 2, '1272-03-20', '1292-06-19', 'The Lion, The Witch and The Wardrobe' ) ,( 5, 'Peter the Magnificent', 1, '1531-04-12', '1328-05-31', 'Prince Caspian' ) ,( 6, 'Edmund the Just', 1, '1531-04-12', '1328-05-31', 'Prince Caspian' ) ,( 7, 'Susan the Gentle', 1, '1531-04-12', '1328-05-31', 'Prince Caspian' ) ,( 8, 'Lucy the Valiant', 1, '1531-04-12', '1328-05-31', 'Prince Caspian' ) ,( 9, 'King Arthur', 3, '0631-03-10', '0686-12-12', 'The Once and Future King' ) ,( 10, 'Sir Lionel', 3, '0631-03-10', '0686-12-12', 'The Once and Future King' ) ,( 11, 'Sir Bors', 3, '0631-03-10', '0686-12-12', 'The Once and Future King' ) ,( 12, 'Sir Bors', 3, '0631-03-10', '0686-12-12', 'The Once and Future King' ) ,( 13, 'Sir Galahad', 3, '0631-03-10', '0686-12-12', 'The Once and Future King' ) ,( 14, 'Sir Gawain', 3, '0631-03-10', '0686-12-12', 'The Once and Future King' ) ,( 15, 'Sir Tristram', 3, '0631-03-10', '0686-12-12', 'The Once and Future King' ) ,( 16, 'Sir Percival', 3, '0631-03-10', '0686-12-12', 'The Once and Future King' ) ,( 17, 'Sir Lancelot', 3, '0631-03-10', '0686-12-12', 'The Once and Future King' ); |
You can run the create_sample.sql script with the following syntax using an absolute path:
sqlite> .read /home/student/Code/sqlite/create_tables.sql |
Then, you can write a query like this to retrieve the data from two tables:
SELECT k.kingdom_name , kn.knight_name FROM kingdom k INNER JOIN knight kn ON k.kingdom_id = kn.kingdom_allegiance_id WHERE k.book = 'Prince Caspian'; |
It will return the following:
Narnia|Peter the Magnificent Narnia|Edmund the Just Narnia|Susan the Gentle Narnia|Lucy the Valiant |
You can exit sqlite3 by entering .quit or Control+D (the system End-Of-File character). If you can determine whether you have a transient or persistent student.db database file with the long list (ll) command.
The following command:
ll /home/student/Code/sqlite/db/student.db |
should return the following:
-rw-r--r-- 1 student student 12288 Feb 9 23:01 /home/student/Code/sqlite/db/student.db |
If the command returned a 0 sized student.db database file, you created a transient Sqlite table. You’ll need to redo the creation of the student.db database file with the .open command as qualified above.
If you want to detach a database from your active Sqlite session, you can issue the following command to remove it:
sqlite> DETACH DATABASE student.db |
Let’s jazz it up a bit with some Python. The first example verifies the ODBC driver’s ability to connect to Sqlite. Please note that it returns the same result for a transient and persistent database file. You can refer to the following documentation for Python examples.
#!/usr/bin/python # Import sqlite3 ODBC library. import sqlite3 try: # Open a connection to the student.db database db = sqlite3.connect('/home/student/Code/sqlite/db/student.db') # Print a string to say you've connected to the student.db database. print("Sqlite database connection success.") except sqlite3.Error as e: print('SQLite error: %s' % (' '.join(e.args))) print("Exception class is: ", e.__class__) print('SQLite traceback: ') exc_type, exc_value, exc_tb = sys.exc_info() print(traceback.format_exception(exc_type, exc_value, exc_tb)) sys.exit(1) finally: # Close the connection when it is open. if db: db.close() |
You can run the sqlite_connection.py script with the following syntax from its local directory:
Sqlite database connection success. |
Assuming you have created a persistent Sqlite database, as qualified above with the .open command and fully qualified file name. A fully qualified file name as a path from a Linux mount point to the file.
You must use the fully qualified file name for a persistent Sqlite student.db database as the database parameter for the sqlite3.connect() method, as shown on line #9 of the sqlite_query.py program below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 | #!/usr/bin/python # Import sys library. import sqlite3 try: # Open a connection to a persistent database, which should use # a fully qualified file name, but may use a relative file # name when the Python code is in the same directory as a # persistent student.db sqlite3 database. db = sqlite3.connect('/home/student/Code/sqlite/db/student.db') # Create a cursor. cursor = db.cursor() # Define a query. query = "SELECT k.kingdom_name " \ ", kn.knight_name " \ "FROM kingdom k INNER JOIN knight kn " \ "ON k.kingdom_id = kn.kingdom_allegiance_id " \ "WHERE k.book = 'Prince Caspian'" # Execute the cursor with the query. cursor.execute( query ) # Display the rows returned by the query. for (kingdom_name, knight_name) in cursor: print('{0} has {1}'.format( kingdom_name.title(), knight_name.title())) except sqlite3.Error as e: print('SQLite error: %s' % (' '.join(e.args))) print("Exception class is: ", e.__class__) print('SQLite traceback: ') exc_type, exc_value, exc_tb = sys.exc_info() print(traceback.format_exception(exc_type, exc_value, exc_tb)) sys.exit(1) finally: # Close the connection when it is open. if db: db.close() |
As always, I hope this helps those trying to get up and running with Sqlite.
Git Hub Desktop on Ubuntu
I need to install Git Hub Desktop on Ubuntu. It was quite straightforward:
bash -c "$(curl -fsSL https://raw.githubusercontent.com/kontr0x/github-desktop-install/main/installGitHubDesktop.sh)" |
Display detailed console log →
Starting install script... Downloading GitHubDesktop-linux-amd64-3.3.8-linux2.deb ... ############################################################################################################### 100.0% Download complete! Should the package be installed? (y/n) y Installing package, this requires sudo privileges! Selecting previously unselected package github-desktop. (Reading database ... 245728 files and directories currently installed.) Preparing to unpack .../GitHubDesktop-linux-amd64-3.3.8-linux2.deb ... Unpacking github-desktop (3.3.8-linux2) ... Setting up github-desktop (3.3.8-linux2) ... Processing triggers for mailcap (3.70+nmu1ubuntu1) ... Processing triggers for gnome-menus (3.36.0-1ubuntu3) ... Processing triggers for desktop-file-utils (0.26-1ubuntu3) ... Processing triggers for hicolor-icon-theme (0.17-2) ... Package installed successfully Clean up downloaded file? (y/n) y File cleaned up! Thank you for using the script, have a nice day! |
You can find it in the 9-dot menu’s second page or launch it from the command line, like:
github-desktop |
Either will launch the GitHub Desktop, as shown below:
As always, I hope this helps those looking for concise and complete free answer on installing GitHub Desktop.
Ruby+PostgreSQL on Ubuntu
This extends the earlier post on installing and configuring Ruby 3.3.0 on Ubuntu 22.0.4. Please refer to that earlier post to install Ruby. This post shows you how to install the necessary libraries and Ruby Gems for PostgreSQL.
You need to install the libra-dev package, as shown:
sudo apt install postgresql libpq-dev |
Display detailed console log →
Reading package lists... Done Building dependency tree... Done Reading state information... Done postgresql is already the newest version (14+238). Suggested packages: postgresql-doc-16 The following NEW packages will be installed: libpq-dev 0 upgraded, 1 newly installed, 0 to remove and 6 not upgraded. Need to get 142 kB of archives. After this operation, 590 kB of additional disk space will be used. Do you want to continue? [Y/n] Y Get:1 https://ftp.postgresql.org/pub/pgadmin/pgadmin4/apt/jammy pgadmin4/main amd64 libpq-dev amd64 16.1-1.pgdg22.04+1 [142 kB] Fetched 142 kB in 7s (20.7 kB/s) Selecting previously unselected package libpq-dev. (Reading database ... 247065 files and directories currently installed.) Preparing to unpack .../libpq-dev_16.1-1.pgdg22.04+1_amd64.deb ... Unpacking libpq-dev (16.1-1.pgdg22.04+1) ... Setting up libpq-dev (16.1-1.pgdg22.04+1) ... Processing triggers for man-db (2.10.2-1) ... |
Next, you need to install the PG Gem:
gem install pg |
Display detailed console log →
Fetching pg-1.5.4.gem Building native extensions. This could take a while... Successfully installed pg-1.5.4 Parsing documentation for pg-1.5.4 Installing ri documentation for pg-1.5.4 Done installing documentation for pg after 3 seconds 1 gem installed |
You can now write a postgres_version.rb program to verify a connection to the PostgreSQL database, like:
# Include Ruby Gem libraries. require 'rubygems' require 'pg' # Begin block. begin # Create a new connection resource. db = PG::connect( 'localhost', 5432, '', '', 'videodb', 'student', 'student') # Create a result set. stmt = db.query('SELECT version() AS version') # Read through the result set hash. stmt.each do | row | puts "#{row['version']}" end # Release the result set resources. stmt.freeze rescue PG::Error => e # Print the error. puts "ERROR #{e.error} (#{e.sqlstate})" puts "Can't connect to the PostgreSQL database specified." # Signal an error. exit 1 ensure # Close the connection when it is open. db.close if db end |
Call the postgres_version.rb program with this syntax:
ruby mysql_version.rb |
It should return:
PostgreSQL 14.10 (Ubuntu 14.10-0ubuntu0.22.04.1) on x86_64-pc-linux-gnu, compiled by gcc (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0, 64-bit |
The postgres_columns.rb script returns a couple columns concatenated into a single column:
# Include Ruby Gem libraries. require 'rubygems' require 'pg' # Begin block. begin # Create a new connection resource. db = PG::connect( 'localhost', 5432, '', '', 'videodb', 'student', 'student') # Create a result set. stmt = db.query("SELECT CONCAT(nh.last_name, ', ', nh.first_name) AS name " + \ "FROM new_hire nh " + \ "ORDER BY nh.last_name") # Read through the result set hash. stmt.each do | row | out = "" i = 0 while i < stmt.fields.count() # Check when not last column and use the: # - Hash returned by the result set for the value, and # - String array value returned by the statement object # as the name value of the hash by leveraging its # numeric index. if i < stmt.fields.count() - 1 out += "#{row[stmt.fields[i]]}" out += ", " else out += "#{row[stmt.fields[i]]}" end i += 1 end puts "#{out}" end # Release the result set resources. stmt.freeze rescue PG::Error => e # Print the error. puts "ERROR #{e.error} (#{e.sqlstate})" puts "Can't connect to PostgreSQL database specified." # Signal an error. exit 1 ensure # Close the connection when it is open. db.close if db end |
Call the postgres_columns.rb program with this syntax:
ruby mysql_columns.rb |
It should return:
Chabot, Henry Lewis, Malcolm |
As always, I hope this helps those looking to learn and solve a problem. You can find the PG Gem documentation here.
VSCode Package Error
While running an update on Ubuntu 22.0.4 with the following syntax I got an error on finding the VSCode Package. I ran this to update before adding Ruby and Rails to an Ubuntu virtual machine instance.
sudo apt-get update |
Display detailed console log →
Hit:1 http://us.archive.ubuntu.com/ubuntu jammy InRelease Get:2 http://security.ubuntu.com/ubuntu jammy-security InRelease [110 kB] Get:3 http://us.archive.ubuntu.com/ubuntu jammy-updates InRelease [119 kB] Hit:4 https://dl.google.com/linux/chrome/deb stable InRelease Ign:5 https://packages.microsoft.com/repos/vscode/dists stable InRelease Err:6 https://packages.microsoft.com/repos/vscode/dists stable Release 404 Not Found [IP: 13.90.56.68 443] Hit:7 https://download.vscodium.com/debs vscodium InRelease Hit:8 http://us.archive.ubuntu.com/ubuntu jammy-backports InRelease Hit:9 https://ftp.postgresql.org/pub/pgadmin/pgadmin4/apt/jammy pgadmin4 InRelease Reading package lists... Done E: The repository 'https://packages.microsoft.com/repos/vscode/dists stable Release' does not have a Release file. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details. |
I manually moved the vscode.list file to my student user’s home directory and removed the file from /etc/apt/sources.list.d directory. This allowed me to update all other packages.
Don’t forget to replace the vscode.list file in the /etc/apt/sources.list.d directory.
Ruby+MySQL on Ubuntu
This post goes through installing and configuring Ruby and Ruby on Rails for MySQL. The first step requires updating the Ubuntu OS:
sudo apt-get update |
Interestingly, I found that the man-db service had inadvertently stopped. It raised the following error:
E: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem. |
You run this command to find the problem with the dpkg utility:
sudo dpkg --configure -a |
It returned:
Setting up man-db (2.10.2-1) ... Updating database of manual pages ... man-db.service is a disabled or a static unit not running, not starting it. |
The following command started the man-db service:
sudo systemctl start man-db.service |
Next, you install the prerequisite packages with this command:
sudo apt-get install -y git-core zlib1g-dev build-essential libssl-dev libreadline-dev libyaml-dev libsqlite3-dev sqlite3 libxml2-dev libxslt1-dev libcurl4-openssl-dev software-properties-common libffi-dev |
Display detailed console log →
Reading package lists... Done Building dependency tree... Done Reading state information... Done Note, selecting 'git' instead of 'git-core' build-essential is already the newest version (12.9ubuntu3). build-essential set to manually installed. libreadline-dev is already the newest version (8.1.2-1). libreadline-dev set to manually installed. git is already the newest version (1:2.34.1-1ubuntu1.10). git set to manually installed. software-properties-common is already the newest version (0.99.22.9). zlib1g-dev is already the newest version (1:1.2.11.dfsg-2ubuntu9.2). zlib1g-dev set to manually installed. The following additional packages will be installed: libssl3 Suggested packages: libcurl4-doc libidn11-dev libkrb5-dev libldap2-dev librtmp-dev libssh2-1-dev sqlite3-doc libssl-doc libyaml-doc The following NEW packages will be installed: libcurl4-openssl-dev libffi-dev libsqlite3-dev libxml2-dev libxslt1-dev libyaml-dev sqlite3 The following packages will be upgraded: libssl-dev libssl3 2 upgraded, 7 newly installed, 0 to remove and 18 not upgraded. Need to get 7,426 kB of archives. After this operation, 12.8 MB of additional disk space will be used. Get:1 http://us.archive.ubuntu.com/ubuntu jammy-updates/main amd64 libssl-dev amd64 3.0.2-0ubuntu1.13 [2,374 kB] Get:2 http://us.archive.ubuntu.com/ubuntu jammy-updates/main amd64 libssl3 amd64 3.0.2-0ubuntu1.13 [1,902 kB] Get:3 http://us.archive.ubuntu.com/ubuntu jammy-updates/main amd64 libcurl4-openssl-dev amd64 7.81.0-1ubuntu1.15 [386 kB] Get:4 http://us.archive.ubuntu.com/ubuntu jammy-updates/main amd64 libsqlite3-dev amd64 3.37.2-2ubuntu0.3 [846 kB] Get:5 http://us.archive.ubuntu.com/ubuntu jammy-updates/main amd64 libxml2-dev amd64 2.9.13+dfsg-1ubuntu0.3 [804 kB] Get:6 http://us.archive.ubuntu.com/ubuntu jammy-updates/main amd64 libxslt1-dev amd64 1.1.34-4ubuntu0.22.04.1 [219 kB] Get:7 http://us.archive.ubuntu.com/ubuntu jammy-updates/main amd64 sqlite3 amd64 3.37.2-2ubuntu0.3 [768 kB] Get:8 http://us.archive.ubuntu.com/ubuntu jammy/main amd64 libffi-dev amd64 3.4.2-4 [63.7 kB] Get:9 http://us.archive.ubuntu.com/ubuntu jammy/main amd64 libyaml-dev amd64 0.2.2-1build2 [62.8 kB] Fetched 7,426 kB in 1s (5,467 kB/s) Preconfiguring packages ... (Reading database ... 246735 files and directories currently installed.) Preparing to unpack .../libssl-dev_3.0.2-0ubuntu1.13_amd64.deb ... Unpacking libssl-dev:amd64 (3.0.2-0ubuntu1.13) over (3.0.2-0ubuntu1.12) ... Preparing to unpack .../libssl3_3.0.2-0ubuntu1.13_amd64.deb ... Unpacking libssl3:amd64 (3.0.2-0ubuntu1.13) over (3.0.2-0ubuntu1.12) ... Setting up libssl3:amd64 (3.0.2-0ubuntu1.13) ... Selecting previously unselected package libcurl4-openssl-dev:amd64. (Reading database ... 246735 files and directories currently installed.) Preparing to unpack .../0-libcurl4-openssl-dev_7.81.0-1ubuntu1.15_amd64.deb ... Unpacking libcurl4-openssl-dev:amd64 (7.81.0-1ubuntu1.15) ... Selecting previously unselected package libsqlite3-dev:amd64. Preparing to unpack .../1-libsqlite3-dev_3.37.2-2ubuntu0.3_amd64.deb ... Unpacking libsqlite3-dev:amd64 (3.37.2-2ubuntu0.3) ... Selecting previously unselected package libxml2-dev:amd64. Preparing to unpack .../2-libxml2-dev_2.9.13+dfsg-1ubuntu0.3_amd64.deb ... Unpacking libxml2-dev:amd64 (2.9.13+dfsg-1ubuntu0.3) ... Selecting previously unselected package libxslt1-dev:amd64. Preparing to unpack .../3-libxslt1-dev_1.1.34-4ubuntu0.22.04.1_amd64.deb ... Unpacking libxslt1-dev:amd64 (1.1.34-4ubuntu0.22.04.1) ... Selecting previously unselected package sqlite3. Preparing to unpack .../4-sqlite3_3.37.2-2ubuntu0.3_amd64.deb ... Unpacking sqlite3 (3.37.2-2ubuntu0.3) ... Selecting previously unselected package libffi-dev:amd64. Preparing to unpack .../5-libffi-dev_3.4.2-4_amd64.deb ... Unpacking libffi-dev:amd64 (3.4.2-4) ... Selecting previously unselected package libyaml-dev:amd64. Preparing to unpack .../6-libyaml-dev_0.2.2-1build2_amd64.deb ... Unpacking libyaml-dev:amd64 (0.2.2-1build2) ... Setting up libyaml-dev:amd64 (0.2.2-1build2) ... Setting up libffi-dev:amd64 (3.4.2-4) ... Setting up libxml2-dev:amd64 (2.9.13+dfsg-1ubuntu0.3) ... Setting up libsqlite3-dev:amd64 (3.37.2-2ubuntu0.3) ... Setting up libcurl4-openssl-dev:amd64 (7.81.0-1ubuntu1.15) ... Setting up libssl-dev:amd64 (3.0.2-0ubuntu1.13) ... Setting up sqlite3 (3.37.2-2ubuntu0.3) ... Setting up libxslt1-dev:amd64 (1.1.34-4ubuntu0.22.04.1) ... Processing triggers for man-db (2.10.2-1) ... Processing triggers for install-info (6.8-4build1) ... Processing triggers for libc-bin (2.35-0ubuntu3.6) ... |
Use the cd command to change to the student home directory. Clone the asdf as the multiple runtime version manager with this command:
git clone https://github.com/excid3/asdf.git ~/.asdf |
The following is the output of the git clone command:
Cloning into '/home/student/.asdf'... remote: Enumerating objects: 8756, done. remote: Counting objects: 100% (829/829), done. remote: Compressing objects: 100% (476/476), done. remote: Total 8756 (delta 428), reused 657 (delta 334), pack-reused 7927 Receiving objects: 100% (8756/8756), 3.10 MiB | 4.29 MiB/s, done. Resolving deltas: 100% (5148/5148), done. |
Next, you fix your .bashrc file by adding the following components:
echo '. "$HOME/.asdf/asdf.sh"' >> ~/.bashrc echo '. "$HOME/.asdf/completions/asdf.bash"' >> ~/.bashrc echo 'legacy_version_file = yes' >> ~/.asdfrc echo 'export EDITOR="code --wait"' >> ~/.bashrc |
Source the modifies shell, which you can do like this:
exec $SHELL |
or, like:
. ${HOME}/.bashrc |
Add the following asdf plug-ins:
asdf plugin add ruby asdf plugin add nodejs |
Install Ruby with the following command:
asdf install ruby 3.3.0 |
Display detailed console log →
Downloading ruby-build...
==> Downloading ruby-3.3.0.tar.gz...
-> curl -q -fL -o ruby-3.3.0.tar.gz https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.0.tar.gz
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 21.0M 100 21.0M 0 0 10.1M 0 0:00:02 0:00:02 --:--:-- 10.1M
==> Installing ruby-3.3.0...
-> ./configure "--prefix=$HOME/.asdf/installs/ruby/3.3.0" --enable-shared --with-ext=openssl,psych,+
-> make -j 2
-> make install
==> Installed ruby-3.3.0 to /home/student/.asdf/installs/ruby/3.3.0
asdf: Warn: You have configured asdf to preserve downloaded files (with always_keep_download=yes or --keep-download). But
asdf: Warn: the current plugin (ruby) does not support that. Downloaded files will not be preserved. |
Install Ruby Global with this syntax:
asdf global ruby 3.3.0 |
Update the Ruby Gems with this command:
gem update --system |
Display detailed console log →
Updating rubygems-update Fetching rubygems-update-3.5.5.gem Successfully installed rubygems-update-3.5.5 Parsing documentation for rubygems-update-3.5.5 Installing ri documentation for rubygems-update-3.5.5 Done installing documentation for rubygems-update after 1 seconds Parsing documentation for rubygems-update-3.5.5 Done installing documentation for rubygems-update after 0 seconds Installing RubyGems 3.5.5 Successfully built RubyGem Name: bundler Version: 2.5.5 File: bundler-2.5.5.gem Bundler 2.5.5 installed RubyGems 3.5.5 installed Regenerating binstubs Regenerating plugins Parsing documentation for rubygems-3.5.5 Installing ri documentation for rubygems-3.5.5 # 3.5.5 / 2024-01-18 ## Enhancements: * Installs bundler 2.5.5 as a default gem. ## Bug fixes: * Fix `require` activation conflicts when requiring default gems under some situations. Pull request [#7379](https://github.com/rubygems/rubygems/pull/7379) by deivid-rodriguez * Use cache_home instead of data_home in default_spec_cache_dir. Pull request [#7331](https://github.com/rubygems/rubygems/pull/7331) by mrkn ## Documentation: * Use squiggly heredocs in `Gem::Specification#description` documentation, so it doesn't add leading whitespace. Pull request [#7373](https://github.com/rubygems/rubygems/pull/7373) by bravehager # 3.5.4 / 2024-01-04 ## Enhancements: * Always avoid "Updating rubygems-update" message. Pull request [#7335](https://github.com/rubygems/rubygems/pull/7335) by deivid-rodriguez * Installs bundler 2.5.4 as a default gem. ## Bug fixes: * Make `gem update --system` respect ruby version constraints. Pull request [#7334](https://github.com/rubygems/rubygems/pull/7334) by deivid-rodriguez ------------------------------------------------------------------------------ RubyGems installed the following executables: /home/student/.asdf/installs/ruby/3.3.0/bin/gem /home/student/.asdf/installs/ruby/3.3.0/bin/bundle /home/student/.asdf/installs/ruby/3.3.0/bin/bundler Ruby Interactive (ri) documentation was installed. ri is kind of like man pages for Ruby libraries. You may access it like this: ri Classname ri Classname.class_method ri Classname#instance_method If you do not wish to install this documentation in the future, use the --no-document flag, or set it as the default in your ~/.gemrc file. See 'gem help env' for details. RubyGems system software updated |
You can confirm your Ruby install with two commands. First, use the which utility to check the Ruby install:
which -a ruby |
It should return:
/home/student/.asdf/shims/ruby |
Then, check the Ruby version:
ruby -v |
It should return:
ruby 3.3.0 (2023-12-25 revision 5124f9ac75) [x86_64-linux] |
Assuming you’ve installed and configured MySQL 8 on Ubuntu, you need this additional library to support the necessary Ruby Gem:
sudo apt-get install -y libmysqlclient-dev |
Now, you can install the current MySQL Ruby Gem:
gem install mysql2 |
You can now write a mysql_connection.rb program to verify a connection to the MySQL 8 database, like:
# Include Ruby Gem libraries. require 'rubygems' require 'mysql2' begin # Create new database connection. db = Mysql2::Client.new( :host => 'localhost' \ , :username => 'student' \ , :password => 'student' \ , :database => 'studentdb') # Create a result set. stmt = db.query('SELECT version() AS version') # Read through the result set hash. stmt.each do | row | puts "#{row['version']}" end # Release the result set resources. stmt.free rescue Mysql2::Error => e # Print the error. puts "ERROR #{e.errno} (#{e.sqlstate}): #{e.error}" puts "Can't connect to the MySQL database specified." # Signal an error. exit 1 ensure # Close the connection when it is open. db.close if db end |
Call the program with this syntax:
ruby mysql_connection.rb |
It should return:
Connected to the MySQL database server. |
You can verify the version with this mysql_version.rb program:
# Include Ruby Gem libraries. require 'rubygems' require 'mysql2' begin # Create new database connection. db = Mysql2::Client.new( :host => 'localhost' \ , :username => 'student' \ , :password => 'student' \ , :database => 'studentdb') # Create a result set. rs = db.query('SELECT version() AS version') # Read through the result set hash. rs.each do | row | puts "#{row['version']}" end # Release the result set resources. rs.free rescue Mysql2::Error => e # Print the error. puts "ERROR #{e.errno} (#{e.sqlstate}): #{e.error}" puts "Can't connect to the MySQL database specified." # Signal an error. exit 1 ensure # Close the connection when it is open. db.close if db end |
On Ubuntu, it should return:
8.0.35-0ubuntu0.22.04.1 |
If you don’t know anything about the mysql2 Ruby Gem, you should read the documentation. It’s very concise and requires a basic understanding of Ruby programming. The two specific pages who may want to check for the next examples are:
- The Mysql2 Statement Class list.
- The Mysql2 Result Class List
The mysql_version.rb version uses the known string literal for columns or column aliases returned by the SQL statement, which becomes the stmt (or statement) in the program. The next program eliminates the need to enumerate with the text-based columns from the query by using the Statement#fields array values by use of a numeric index. The numeric index returns the field names from the Statement#fields class to use in as the name for values in the Result#fields value found in the row variable of the for loop.
# Include Ruby Gem libraries. require 'rubygems' require 'mysql2' # Begin block. begin # Create a new connection resource. db = Mysql2::Client.new( :host => 'localhost' \ , :username => 'student' \ , :password => 'student' \ , :database => 'studentdb') # Create a result set. stmt = db.query("SELECT DISTINCT i.item_title, ra.rating " + \ "FROM item i INNER JOIN rating_agency ra " + \ "ON i.item_rating_id = ra.rating_agency_id " + \ "WHERE ra.rating_agency = 'MPAA'" + \ "ORDER BY 1") # Read through the result set hash. stmt.each do | row | out = "" i = 0 while i < stmt.fields.count() # Check when not last column and use the: # - Hash returned by the result set for the value, and # - String array value returned by the statement object # as the name value of the hash by leveraging its # numeric index. if i < stmt.fields.count() - 1 out += "#{row[stmt.fields[i]]}" out += ", " else out += "#{row[stmt.fields[i]]}" end i += 1 end puts "#{out}" end # Release the result set resources. stmt.free rescue Mysql2::Error => e # Print the error. puts "ERROR #{e.errno} (#{e.sqlstate}): #{e.error}" puts "Can't connect to MySQL database specified." # Signal an error. exit 1 ensure # Close the connection when it is open. db.close if db end |
It returns the select two columns from the query:
A Man for All Seasons, G Around the World in 80 Days, G Beau Geste, PG Brave Heart, R Camelot, G Casino Royale, PG-13 ... Tomorrow Never Dies, PG-13 Tora! Tora! Tora!, G Tron, PG |
The following mysql_query_params.rb Ruby example accepts a single argument to leverage a wild card query in MySQL:
require 'rubygems' require 'mysql2' # Input external arguments. arguments = ARGV # Check for one input parameter and substitute an empty string # when one isn't found. if arguments.length == 1 argument = arguments[0] else argument = "" end # Begin block. begin # Create a new connection resource. db = Mysql2::Client.new( :host => 'localhost' \ , :username => 'student' \ , :password => 'student' \ , :database => 'studentdb') # Create a result set. stmt = db.prepare("SELECT DISTINCT i.item_title, ra.rating " + \ "FROM item i INNER JOIN rating_agency ra " + \ "ON i.item_rating_id = ra.rating_agency_id " + \ "WHERE ra.rating_agency = 'MPAA'" + \ "AND i.item_title LIKE CONCAT(?,'%')" + \ "ORDER BY 1") # Bind the variable into the query. rs = stmt.execute(argument) # Read through the result set hash. rs.each do | row | out = "" i = 0 while i < rs.fields.count() # Check when not last column and use the: # - Hash returned by the result set for the value, and # - String array value returned by the statement object # as the name value of the hash by leveraging its # numeric index. if i < rs.fields.count() - 1 out += "#{row[rs.fields[i]]}" out += ", " else out += "#{row[rs.fields[i]]}" end i += 1 end puts "#{out}" end # Release the result set resources. rs.free rescue Mysql2::Error => e # Print the error. puts "ERROR #{e.errno} (#{e.sqlstate}): #{e.error}" puts "Can't connect to MySQL database specified." # Signal an error. exit 1 ensure # Close the connection when it is open. db.close if db end |
If you call the mysql_query_params.rb program with this syntax:
ruby mysql_aquery_params.rb Harry |
It’ll return the following from the studentdb database:
Harry Potter and the Chamber of Secrets, PG Harry Potter and the Deathly Hallows, Part 1, PG-13 Harry Potter and the Deathly Hallows, Part 2, PG-13 Harry Potter and the Goblet of Fire, PG-13 Harry Potter and the Half Blood Prince, PG Harry Potter and the Order of the Phoenix, PG-13 Harry Potter and the Prisoner of Azkaban, PG Harry Potter and the Sorcerer's Stone, PG |
After that, you should install Rails (check for current version beyond 1/2024). Install Ruby Global with this syntax:
gem install rails -v 7.1.3 |
Check the version installed:
rails -v |
It should return:
Rails 7.1.3 |
Run this command to enable Rails for MySQL 8:
rails new myapp -d mysql |
If you want to configure a username and password for MySQL, edit the config/database.yml file.
As always, I hope this helps somebody looking for step-by-step guide.
VSCode & $PYTHONPATH
About 4 years ago, I demonstrated how to develop Python functions with a relative src directory in this old blog post. I thought it might be possible to do with VSCode. Doing a bit of research, it appeared all that was required was adding the PythonPath to VSCode’s Python settings in:
/home/student/.vscode/extensions/ms-python.python-2023.22.0/pythonFiles/.vscode/settings.json |
It contained:
{"files.exclude":{"**/__pycache__/**":true,"**/**/*.pyc":true},"python.formatting.provider":"black"} |
I added a configuration for the PYTHONPATH, as shown:
{"files.exclude":{"**/__pycache__/**":true,"**/**/*.pyc":true},"python.formatting.provider":"black","python.pythonPath": "/home/student/Lib"} |
As you can tell from the embedded VSCode Terminal output below, the PYTHONPATH is not found. You can manually enter it and retest your code successfully. There is no way to use a relative PYTHONPATH like the one you can use from an shell environment file.
This is the hello_whom5.py code:
#!/usr/bin/python # Import the basic sys library. import sys from input import parse_input # Assign command-line argument list to variable. whom = parse_input(sys.argv) # Check if string isn't empty and use dynamic input. if len(whom) > 0: # Print dynamic hello salutation. print("Hello " + whom + "!\n") else: # Print default saluation. print("Hello World!") |
This is the input.py library module:
# Parse a list and return a whitespace delimited string. def parse_input(input_list): # Assign command-line argument list to variable. cmd_list = input_list[1:] # Declare return variable. result = "" # Check whether or not their are parameters beyond the file name. if isinstance(input_list,list) and len(input_list) != 0: # Loop through the command-line argument list and print it. for element in cmd_list: if len(result) == 0: result = element else: result = result + " " + element # Return result variable as string. return result |
This is the Terminal output from VSCode:
student@student-virtual-machine:~$ /bin/python /home/student/Code/python/hello_whom5.py Traceback (most recent call last): File "/home/student/Code/python/hello_whom5.py", line 5, in <module> from input import parse_input ModuleNotFoundError: No module named 'input' student@student-virtual-machine:~$ export set PYTHONPATH=/home/student/Lib student@student-virtual-machine:~$ /bin/python /home/student/Code/python/hello_whom5.py Hello World! student@student-virtual-machine:~$ /bin/python /home/student/Code/python/hello_whom5.py Katniss Everdeen Hello Katniss Everdeen! student@student-virtual-machine:~$ |
The VSCode image for the test follows below:
As always, I hope this helps somebody working the same issue. However, if somebody has a better solution, please let me know.
Ubuntu Next.js Install
You begin by setting up Node with its version manager. You can do this in a Terminal shell with the following command:
curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.1/install.sh | bash |
After running that command, you should reboot your system. Then, open a new Terminal session and start NVM with this command in your home directory:
nvm install --lts |
Display detailed console log →
Installing latest LTS version. Downloading and installing node v20.11.0... Downloading https://nodejs.org/dist/v20.11.0/node-v20.11.0-linux-x64.tar.xz... ######################################################################### 100.0% Computing checksum with sha256sum Checksums matched! Now using node v20.11.0 (npm v10.2.4) Creating default alias: default -> lts/* (-> v20.11.0) |
After installing Node, create a new Next.js application to test if everything is working. Create a blog-app application with the following command in the Ubuntu bash shell session:
npx create-next-app@latest blog-app |
It produces a small console log and asks you complete interactive responses as shown:
Need to install the following packages:
create-next-app@14.0.4
Ok to proceed? (y) y
✔ Would you like to use TypeScript? … No / Yes
✔ Would you like to use ESLint? … No / Yes
✔ Would you like to use Tailwind CSS? … No / Yes
✔ Would you like to use `src/` directory? … No / Yes
✔ Would you like to use App Router? (recommended) … No / Yes
✔ Would you like to customize the default import alias (@/*)? … No / Yes
Creating a new Next.js app in /home/student/blog-app.
Display detailed console log →
Using npm. Initializing project with template: app-tw Installing dependencies: - react - react-dom - next Installing devDependencies: - typescript - @types/node - @types/react - @types/react-dom - autoprefixer - postcss - tailwindcss - eslint - eslint-config-next added 362 packages, and audited 363 packages in 25s 128 packages are looking for funding run `npm fund` for details found 0 vulnerabilities Success! Created blog-app at /home/student/blog-app npm notice npm notice New minor version of npm available! 10.2.4 -> 10.3.0 npm notice Changelog: https://github.com/npm/cli/releases/tag/v10.3.0 npm notice Run npm install -g npm@10.3.0 to update! npm notice |
Now, you can launch the application from the command-line interface (CLI):
npm run dev & |
Display detailed console log →
> blog-app@0.1.0 dev > next dev ▲ Next.js 14.0.4 - Local: http://localhost:3000 Attention: Next.js now collects completely anonymous telemetry regarding usage. This information is used to shape Next.js' roadmap and prioritize features. You can learn more, including how to opt-out if you'd not like to participate in this anonymous program, by visiting the following URL: https://nextjs.org/telemetry ✓ Ready in 1937ms ○ Compiling / ... ✓ Compiled / in 14.9s (500 modules) ✓ Compiled in 597ms (235 modules) ○ Compiling /favicon.ico ... ✓ Compiled /favicon.ico in 2.1s (505 modules) |
You can view the running application by using the following URL in a local browser:
http://localhost:3000 |
It should render the following web application:
As always, I hope this helps those curious about new things and who need a set of instructions.
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