Shell Script to find the sum of two numbers supplied as command line argument

Q. How do I add command line arguments in Bash
Ans:

#!/bin/bash
if [ $# -ne 2 ] ; then
echo -e " please provide correct number of arguments"
else
# $1 is first argument and $2 is second .
echo " sum of $1 + $2 is `expr $1 + $2` "
fi

Output

Enjoy :)