There are quite a few different ways that you could perform this task. Whenever, I'm dealing with file paths I like to use Path::Tiny. For example, 
#!/usr/bin/env perl

use strict;
use warnings;

use Path::Tiny;

my $filespec = "/usr/share/directory/piano_book.mp4";

my $path = path($filespec);
my $rel = $path->relative("/usr/share");
print $rel, "\n";
exit;

[download]
This article is a good intro to Path::Tiny.

In reply to Re: How to cut the directory path? by kevbot
in thread How to cut the directory path? by aca

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