#!/usr/bin/perl
use strict;
use File::Find;
use File::stat;
use Digest::MD5;

find(\&search, "/home/test/");

sub search {
    my %result;
    #   Make sure we only look at files and end in src extn.
    if ( -f && /\.src$/i ) {
        foreach my $files ( $File::Find::name ) {
            open(FH, $files) or die "Can't open '$files': $!";
            binmode(FH);
            #   Get/Create MD5 for the file
            my $hashValue = Digest::MD5->new->addfile(*FH)->hexdigest;
            #  Store the filename, indexed by hash value, into an array. This
            #  allows us to store multiple files with the same hash value.
            push( @{ $result{$hashValue} }, $files );
        }
        #  Dump out the result hash, sorting by the hash values.
        foreach my $key ( sort keys %result ) {
            #  Dump out the array of filenames indexed by this hash value. We 
            #  could have sorted this list too if we wanted.
            foreach my $filename ( @{ $result{$key} } ) {
                print "$key -> $filename\n";
            }
        }
    }
}


------------------------------------------------------

_____Current results______
b78c8fafb9a5d4df6b36dcd35c56f6aa -> /home/test/file1.src
f49f62c0d885ea4687d3149ea95c98fd -> /home/test/test2.src
6ebd09e0c2ff94316410b1444fbbb37a -> /home/test/file4.src
b1a087078b62487c1d4c02f4c943af09 -> /home/test/file10.src


______Expected results________
6ebd09e0c2ff94316410b1444fbbb37a -> /home/test/file4.src
b1a087078b62487c1d4c02f4c943af09 -> /home/test/file10.src
b78c8fafb9a5d4df6b36dcd35c56f6aa -> /home/test/file1.src
f49f62c0d885ea4687d3149ea95c98fd -> /home/test/test2.src