Shell Programming and Scripting

#!/bin/bash
a=0
b=1
c=0
COUNT=0
CHKCNT=0
forproblemmail=0
dir_file_check=""
#Which Search Files
WHICHFILE=ORProxyTC`date '+%m%d%Y'`
# Which Dir Listing
DIRS=( "/home/student/bin/dir1" "/home/student/bin/dir2" "/home/student/bin/dir3" "/home/student/bin/dir4" )
#Processing Which Files in Which Dirs
for WHICHDIR in ${DIRS[*]}
 
     do
# Directory Controls
ls -1 $WHICHDIR &> /dev/null
 
if [ $? -ne 0 ] ; then
     Msg1="ERROR: Directory Not Found ($WHICHDIR)"
     dir_file_check=1
     forproblemmail=1
else
# If Directory is there and Matced Files Not in our dir
FILEINDIRCHECK=`ls -1 $WHICHDIR/$WHICHFILE*.txt 2>/dev/null`
  if [ "$FILEINDIRCHECK" == "" ] ; then
       Msg2="ERROR: Matched Files Not Found in ($WHICHDIR)"
       dir_file_check=2
       forproblemmail=1
    else
    dir_file_check=0  # Directory Ok
  fi
fi
#Directory Remove Which there is Not or No Matched Files in
if [ $dir_file_check -ne 0 ] ; then
     echo ""
     DIRNOTFOUND=$WHICHDIR
     DIRSNEW=( ${DIRS[*]} )
     DIRS=("")
     DIRS=$( (echo ${DIRSNEW[*]#$DIRNOTFOUND}) )
 
 #Write A Message
 case $dir_file_check in
   1)
     echo $Msg1 ;;
   2)
     echo $Msg2 ;;
 esac
 
echo ""
fi
 
   done
 
# And Normal Process Go on
 
for WHICHDIR in $DIRS
  do
     for i in $( (ls -1 $WHICHDIR/$WHICHFILE*.txt) )
       do
                FILES[c]="$i"
                GREPFUNC[c]=$(grep -i -E -H "login|Successfully" ${FILES[c]})
 
                      if [ $? -eq 0 ] ; then
                           ((++COUNT))
                           GREPFUNCOK[a]=${GREPFUNC[c]}
                           ((++a))
                      fi
 
      ((++c))
      dirp1=${WHICHDIR%*/*/*} ; dirp1=/${dirp1#*/*/}
      dirp2=${WHICHDIR#/*/*/*/*}
      DIROK=$( (echo $dirp1/$dirp2) )
      DIRTMP[b]="$DIROK"
 
                      if [ $CHKCNT -eq 0 ] ; then
                           echo "$DIROK"
                             else
                                  if [ "${DIRTMP[b]}" != "${DIRTMP[b-1]}" ] ; then
                                        echo "${DIRTMP[b]}"
                                  fi
                      fi
          ((++CHKCNT))
          ((++b))
 
       done
 
           a=0   
           COUNTOK=$COUNT
 
        while [ $(( COUNT -= 1 )) -gt 0 ]
             do
                 echo "Search completed and found: ${GREPFUNCOK[a]}." >/tmp/emailmessage.txt
                 echo   "#################################################################" >>/tmp/emailmessage.txt
                 ((++a))
             done
 
         echo "Search completed and found: ${GREPFUNCOK[a]}." >>/tmp/emailmessage.txt
         echo "This is the total number of files: ${COUNTOK}." >>/tmp/emailmessage.txt
          echo "#################################################################" >>/tmp/emailmessage.txt
 
           COUNTOK=0
           COUNT=0
           c=0
           a=0
          echo "" >>/tmp/emailmessage.txt
  done
 
#Mail Process
if [ $forproblemmail - eq 1 ] ; then
       SUBJECT="ERROR: Problem During Find Files"
         else
              SUBJECT="NO ERROR: Complete Find Files With Success"
fi
# Email To ?
EMAIL="admin@somewhere.com"
# Email text/message
EMAILMESSAGE="/tmp/emailmessage.txt"
# send an email using /bin/mail
mail -s "$SUBJECT" "$EMAIL" < $EMAILMESSAGE