MacLochlainns Weblog

#!/bin/ksh
# -------------------------------------------------------------------------
# Author:   Michael McLaughlin
# Name:     tkprof.ksh
 
# Purpose:  The program takes the following arguments:
#           1. A directory
#           2. A search string
#           3. A target directory
#           It assumes raw trace files have an extension of ".trc".
#           The output file name follows this pattern (because it is
#           possible for multiple tracefiles to be written during the
#           same minute).
# -------------------------------------------------------------------------
 
# Function to find minimum field delimiter.
function min
{
  # Find the whitespace that preceeds the file date.
  until [[ $(ls -al $i | cut -c$minv-$minv) == " " ]]; do
    let minv=minv+1
  done
}
 
# Function to find maximum field delimiter.
function max
{
  # Find the whitespace that succeeds the file date.
  until [[ $(ls -al $i | cut -c$maxv-$maxv) == " " ]]; do
    let maxv=maxv+1
  done
}
 
# Debugging enabled by unremarking the "set -x"
# set -x
 
# Print header information
print =================================================================
print Running [tkprof.ksh] script ...
 
# Evaluate whether an argument is provide and if no argument
# is provided, then substitute the present working directory.
if   [[ $# == 0 ]]; then
  dir=${PWD}  
  str="*"
  des=${PWD}  
elif [[ $# == 1 ]]; then
  dir=${1}
  str="*"
  des=${1}
elif [[ $# == 2 ]]; then
  dir=${1}
  str=${2}
  des=${1}
elif [[ $# == 3 ]]; then
  dir=${1}
  str=${2}
  des=${3}
fi
 
# Evaluate whether the argument is a directory file.
if [[ -d ${dir} ]] && [[ -d ${des} ]]; then
 
  # Print what directory and search string are targets.
  print =================================================================
  print Run in tkprof from [${dir}] directory ...
  print The files contain a string of [${str}] ...
  print =================================================================
 
  # Evaluate whether the argument is the present working
  # directory and if not change directory to that target
  # directory so file type evaluation will work.
  if [[ ${dir} != ${PWD} ]]; then
    cd ${dir} 
  fi
 
  # Set file counter.
  let fcnt=0
 
  # Submit compression to the background as a job.
  for i in $(grep -li "${str}" *.trc); do
 
    # Evaluate whether file is an ordinary file.
    if [[ -f ${i} ]]; then
 
      # Set default values each iteration.
      let minv=40
      let maxv=53
 
      # Increment counter.
      let fcnt=fcnt+1
 
      # Call functions to reset min and max values where necessary.
      min ${i}
      max ${i}
 
      # Parse date stamp from trace file without multiple IO calls.
      # Assumption that the file is from the current year.
      date=$(ls -al ${i} | cut -c${minv}-${maxv}) 
      mon=$(echo ${date} | cut -c1-3)
      yr=$(date          | cut -c25-28)
 
      # Validate month is 10 or greater to pad for reduced whitespace.
      if (( $(echo ${date} | cut -c5-6) < 10 )); then
        day=0$(echo ${date}| cut -c5-5)
        hr=$(echo ${date}  | cut -c7-8)
        min=$(echo ${date} | cut -c10-11)
      else
        day=$(echo ${date} | cut -c5-6)
        hr=$(echo ${date}  | cut -c8-9)
        min=$(echo ${date} | cut -c11-12)
      fi
 
      fn=file${fcnt}_${day}-${mon}-${yr}_${hr}:${min}:${day}
 
      print Old [$i] and new [$des/$fn]
      tkprof ${i} ${des}/${fn}.prf explain=APPS/APPS sort='(prsela,exeela,fchela)'
 
      # Print what directory and search string are targets.
      print =================================================================
    fi
  done
 
else
  # Print message that a directory argument was not provided.
  print You failed to provie a single valid directory argument.
fi