TO PERFORM ARITHMETIC OPERATIONS USING SHELL SCRIPTING

#TO PERFORM ARITHMETIC OPERATIONS USING SHELL SCRIPTING IN LINUX

echo "Enter the number 1: "
read x
echo "Enter the number 2: "
read y

exit=0
while [ $exit -eq 0 ]
do

echo -e "\n1.Addition \n2.Subtraction \n3.Multiplication \n4.Division \n5.Mod \nEnter your choice:  "
read ch
case $ch in
 1)add=`expr $x + $y`
   echo "Addition= " $add;;
 2)sub=`expr $x - $y`
   echo "Subtraction= " $sub;;
 3)mul=`expr $x \* $y`
   echo "Multiplication= " $mul;;
 4)div=`expr $x / $y`
   echo "Division= " $div;;
 5)mod=`expr $x % $y`
   echo "Mod= " $mod;;
   esac

echo -e "\nDo you want to continue(0:'YES'/1:'NO'):  "
read exit

done