#!/bin/bash

# Search and replase by Moisey Oysgelt
# Bash/Korn  search and replase utilty
# Craeted   10/26/2005 5:41PM   version 1.0.0.1


usage()
{
 echo 'Usage: $0  "(templates_file|expresion)" ( "file" |("search_path wild_card" ))   '
 exit
}


path=$2
wild=$3
template=$1
DT=`date +%M-%d-%y`

if [ -z $1 ]; then
 usage
 exit
fi

if [ ! -f  $template ]; then
#  echo "Cannot find substitue file [$template]  "
  nofile=1
fi

if [[ (! -f  $path ) &&  (! -d $path ) ]]; then
 usage
 exit
fi


if [[ -d $path ]]; then
  if [ -z $wild ]; then
  usage
  exit
  fi
fi


  if [[ $nofile -eq  1 ]]; then
    res=$(echo $template | grep -E s/.*/.*/)
    if [[ $res == "" ]]; then
       echo "Wring sed replase expresion. Correct has to be in format s/search/replase/"
       exit
    fi
  fi

replase()
{

  fname=$1
  TEMP_FILE="${fname}.${DT}.tmp"
  BK_FILE="$fname.${DT}.bak"
  if [[ $nofile -eq  1 ]]; then
     sed $template  $fname >$TEMP_FILE
  else
    sed  -f $template $fname >$TEMP_FILE
  fi
  if [ $? -eq 0 ]; then
     diff  $fname     $TEMP_FILE
     if [ $? -eq 0 ]; then
        rm $TEMP_FILE
        echo "No replace on file [$fname ] "
    else
      mv $fname $BK_FILE
      mv $TEMP_FILE $fname
    fi
  else
   echo "Cannot execute  s&r  on file [$fname ] "
   rm $TEMP_FILE
  fi
}
if [[ -f $path ]]; then
  lst=$path
else
  lst=$( find $path -name "$wild")
fi


for fl in $lst
do
  replase  $fl
done