I have an awk file add.awk which contains a function add(num1,num2).I want to take input from the command line.#!/bin/awk -ffunction add(num1,num2){    print $num1 + $num2}BEGIN {    add($1,$2)}But when I try to execute the file add.awk using the following command: ./add.awk 5,6it always prints the value 0.Is there any problem with the way I am specifying the input?
Function to add two numbers in awk
awk