#! /usr/bin/perl -w

use strict;
use Digest::MD5;

my $orig = shift or die "no original given\n";
my $dup  = shift or die "no copy given\n";

open ORIG, $orig || die "Cannot open $orig for input: $!\n";
my $origmd5 = Digest::MD5->new;
my $origdig = $origmd5->addfile( *ORIG )->digest;
close ORIG;

open DUP, $dup || die "Cannot open $dup for input: $!\n";
my $dupmd5 = Digest::MD5->new;
my $dupdig = $dupmd5->addfile( *DUP )->digest;

print( $origdig ne $dupdig ? 'not ' : '', "ok\n" );