Expr in Shell
 

Hi there,

I am creating a shell program. I am using expr but the output is not the one that is expected. This is the code i am trying is

#!/bin/bash
echo "adding two numbers"
echo "Enter First Number"
read a
echo "Enter second Number"
read b
echo "The sum of $a and $b is 'expr $a + $b'"

but instead of giving me the total of two numbers, its giving me the output as "The sum of 2 and 3 is 'expr 2 + 3'". Please help.

You need to use backticks (`), not single quotes (').