echo Enter String
read str

    length=0
    cnt=1
    flag=0

length=`expr $str | wc -c`
length=`expr $length - 1`
temp=`expr $length / 2`

while test $cnt -le $temp
do
        rev=`expr $str | cut -c $cnt`
        ans=`expr $str | cut -c $length`

        if [ $rev != $ans ]
        then
                flag=1
        fi

        cnt=`expr $cnt + 1`
        length=`expr $length - 1`
done

if [ $flag -eq 0 ]
then
        echo String is palindrome
else
        echo String is not palindrome
fi