DISPLAY THE SUM AND REVERSE OF A NUMBER USING WHILE LOOP.

#DISPLAY THE SUM AND REVERSE OF A NUMBER USING WHILE LOOP.

echo "Enter the number: "
read x
rev=0
sum=0
d=0

while [ $x -gt 0 ]
do
 d=`expr $x % 10`
 x=`expr $x / 10`
 sum=`expr $sum + $d`
 rev=`expr $rev \* 10`
 rev=`expr $rev + $d`
done

echo "sum= " $sum
echo "reverse= " $rev

#OUTPUT:
#bash-3.00$ ./EXP7_1.sh
#Enter the number:
#123
#sum=  6
#reverse=  321