#!/usr/bin/perl -w
require 5.003;
# Example: giving input to a perl script from the command line.

if ($#ARGV == 1) {      # Proceed if there are two items on the command line
# we will assume both items are numbers and we add them.

        print "\n\n";
	$x = $ARGV[0];
	$y = $ARGV[1];
	$z = $x + $y;
        print "\tIf x = $x and y = $y, then x + y = $z.  So there.\n\n";
    }
else { print "\nUSAGE: ./input-cl.pl [First Number]  [Second number]
This will add your two numbers.\n\n";}