It's a shell quoting issue, not a substr issue. Change the single quotes around the empty string to double quotes, it'll work fine. 
$ perl -e 'my $str = "This_is_a_song_.mp3"; substr($str, 14, 1, ""); p
+rint $str."\n";'
This_is_a_song.mp3

[download]

In reply to Re: Using substr to remove characters by bmann
in thread Using substr to remove characters by JediWizard

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