And if you don't have it and don't feel like grabbing the entire source tarball: 

#!/usr/bin/perl -w
# rename - Larry's filename fixer
$op = shift or die "Usage: rename expr [files]\n";
chomp(@ARGV = <STDIN>) unless @ARGV;
for (@ARGV) {
    $was = $_;
    eval $op;
    die $@ if $@;
    rename($was,$_) unless $was eq $_;
}

[download]

Always handy. Don't leave $HOME without it.

In reply to Re^2: Optimize file renaming. by Fletch
in thread Optimize file renaming. by omega_monk

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