Shell Programming and Scripting

while read line
do
 extractcount=`expr $extractcount + 1`
 
 timestampupdated=`expr substr "$line" 1 26`
 
 trackingnum=`expr substr "$line" 229 10`
 
 trackingnumsuffix=`expr substr "$line" 239 5`
 
 db2 -x "DELETE FROM $qualifier.ZB_FSCD_TXN_ERROR_MIG WHERE TIMESTAMP_UPDATED = '$timestampupdated' AND TRACKING_NUM = '$trackingnum' AND TRACKING_NUM_SUFFIX = $trackingnumsuffix" > delstatus
 ReturnCode_Delete=$?
 
 #check whether the record is deleted successfully or not
 if [ ReturnCode_Delete -eq 0 ]
       then
  deletecount=`expr $deletecount + 1`
  echo "$line" >> "$deletedfile"
 else
  notdeletecount=`expr $notdeletecount + 1`
  echo "$line" >> "$notdeletefile"
  cat delstatus >> $logfile
  echo "$line" >> "$logfile"
 fi   
 
done < $extractfile