Shell Programming and Scripting

for line in `cat Final`  
do
    echo -e "$line"
    count=`echo $line | cut -d ',' -f 4`
    etime=`echo $line | cut -d "," -f 1`
    echo  $etime
    echo  $count   
    sytime=`date +%s`
    dif=$(( $sytime - $etime ))
    echo $dif
    if [ $dif -ge 900 ];then
	  echo true
             newcount=$(( $count + 1 ))	
	  tline= sed s/"$count"/"$newcount"/ $line 
	  $line = $tline
             echo $newcount
	  echo $line
		
    else 
	  echo flase
    fi		
done

tline= sed s/"$count"/"$newcount"/ $line

echo $line > temp