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... my ($title, $track, $artist); ... ($title, $track, $artist) = $mp3->autoinfo(); }; ...
my $newname = File::Spec->catfile($mp3dir[$i],"$track. $artist - +$title.mp3"); my $oldname = File::Spec->catfile($mp3dir[$i],$mp3file[$i]); rename($oldname, $newname) or die "Couldn't rename '$oldname' to '$newname': $!";