One small nit. I would replace this code: 
if ($dot > -1) {
    $extension = substr($filename, $dot+1);
    $extensions{$extension}++;
} else {
    $extensions{'_without_extension'}++;
}

[download]
by: 
$extensions{$dot == -1 ? '' : substr( $filename,$dot )}++;

[download]
for two reasons:
  1. it's more compact
  2. it allows you to differentiate between filenames without extension (no . found) and with an empty extension (a . at the end).
Liz

In reply to Re: Re: Hash ref and file extensions by liz
in thread Hash ref and file extensions by rupesh

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