That sucks!

I have the following script that I use to comb through a filesystem and kill off the duplicates. I'm pretty confident it works correctly. I staked my mp3 collection on it after all. (Weeded out about 3Gb of duplicates in ~55Gb).

#! /usr/bin/perl -w

use strict;

use File::Find;
use Digest::MD5;

my %digest;
my $total_bytes = 0;
my $dups = 0;

sub wanted {

    return unless -f $_;

    if( !open IN, $_ ) {
        print "Cannot open $_ for input: $!\n";
        return;
    }

    my $md5 = Digest::MD5->new;
    my $d   = $md5->addfile( *IN )->digest;
    close IN;

    my $bytes = -s $_;
    return unless $bytes;


    if( defined $digest{$d} ) {
        print "$bytes\t$digest{$d}\t$File::Find::name\n";
        unlink $_;
        $total_bytes += $bytes;
        ++$dups;
    }
    else {
        $digest{$d} = $File::Find::name;
    }
}

foreach my $d ( @ARGV ) {
    print "=== directory $d\n";
    find \&wanted, $d;
}

printf "Statistics:
    Duplicates: %12d
         Bytes: %12d
        KBytes: %12d
        MBytes: %12d
        GBytes: %12d
",
    $dups,
    $total_bytes,
    $total_bytes / (1024**1),
    $total_bytes / (1024**2),
    $total_bytes / (1024**3);
__END__

[download]

hope this helps!

--
g r i n d e r

In reply to Re: it's been awhile . . . by grinder
in thread it's been awhile . . . by ashaman

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