Shell Programming and Scripting

#!/bin/bash
#####################################
# Created by : Malik Shahid Hussain #
# Created on : 07-OCT-2010 #
# Created for: To Compare file-Dir #
#####################################
AtheerHD=/export/home/atheerbi/FILESRECORDS/
rm -f ${AtheerHD}*ExistFiles.txt
############################################
# Define Variable to take User Input #
############################################
read -p "Enter the full path of directory:" dir
read -p "Enter the text file name with full path:" txt
############################################
# Check For Inputs #
############################################
if [[ "$dir" = "" || "$txt" = "" ]];then
  echo -e '\E[37;41m'"\033[1mSorry: Need Dir Path and Filename \033[0m";
  exit -1
fi
############################################
# Check Temp file #
############################################
if [[ ! -e ${AtheerHD}tmpr.tx ]];then
  touch -f ${AtheerHD}tmpr.tx
fi
############################################
# Check For File Status #
############################################
while read line
do
  find $dir -name "$line" |head -1 >${AtheerHD}tmpr.tx 
  grep "$line" ${AtheerHD}tmpr.tx 2>dev>null
  if [[ $? -eq 0 ]];then
    echo $line >> ${AtheerHD}ExistFiles.txt
  else
    echo $line >> ${AtheerHD}NotExistFiles.txt
  fi
done < $txt
echo -e '\E[37;41m'"\033[1m For Exist Check==== ${AtheerHD}ExistFiles.txt \033[0m";
echo -e '\E[37;41m'"\033[1m For Not Exist Check==== ${AtheerHD}NotExistFiles.txt \033[0m";

sort $txt >txt.sorted
find /u03 -type f | sort >biglist.sorted
comm -12 txt.sorted biglist.sorted

while read name
do
ls -d /u03/*/$name 2>/dev/null
done <$txt

while read a
do
eval find /u03 -type d -exec ls -d {}/$a\; 2>/dev/null 
done <$txt