Write a Shell Script to check wheather a string is palindrome or not

Shell Script:

clear
echo enter a string
read str
echo Input string= $str
l=`echo $str|wc -c`
echo length of Input string= $l
for ((i=1;i<=$l-1;i++))
do
c=`echo $str|cut -c $i`
rev=$c$rev
done
echo Reversed string= $rev
if [ "$rev" = "$str" ]
then
echo palindrome
else
echo not palindrome
fi


OUTPUT:


1)[admin@localhost ~]$ sh strpalin.sh
enter a string
nayan
Input string= nayan
length of Input string= 6
Reversed string= nayan
palindrome

2)[admin@localhost ~]$ sh strpalin.sh
enter a string
rakesh Input string= rakesh
length of Input string= 6
Reversed string= hsekar
not palindrome