It's quite easy to avoid the problem: 
#!/usr/bin/perl

use strict;
use warnings;

my $f = shift;

if ($f =~ m[^s/])
{
    $f = eval "sub { $f }";
}
else
{
    my $re = qr/$f/;
    my $to = shift;

    $f = eval "sub { s/\$re/$to/ }";
}

for (@ARGV)
{
    my $o = $_;
    $f->();
    if ($o ne $_)
    {
        if ( ! -e $o ) {
            print "rename $o, $_\n";
            rename $o, $_;
        } else {
            print "can't rename : $o exists\n" 
        }
    }
}

[download]

In reply to Re^2: Yet another perl-rename tool by wazoox
in thread Yet another perl-rename tool by Tanktalus

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