command line rename script using regex

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command line rename script using regex

so many gems in the perl cookbook. need to revisit it more.

there's an updated version at /usr/bin/rename on debian boxes. not sure if it's on rhel. beautifully written. it's like reading a poem.

use strict;
use Getopt::Long;
Getopt::Long::Configure('bundling');
my ($verbose, $no_act, $force, $op);
die "Usage: rename [-v] [-n] [-f] perlexpr [filenames]\n"
    unless GetOptions(
    'v|verbose' => \$verbose,
    'n|no-act'  => \$no_act,
    'f|force'   => \$force,
    ) and $op = shift;
$verbose++ if $no_act;
if (!@ARGV) {
    print "reading filenames from STDIN\n" if $verbose;
    @ARGV = ;
    chop(@ARGV);
}
for (@ARGV) {
    my $was = $_;
    eval $op;
    die $@ if $@;
    next if $was eq $_; # ignore quietly
    if (-e $_ and !$force)
    {
    warn  "$was not renamed: $_ already exists\n";
    }
    elsif ($no_act or rename $was, $_)
    {
    print "$was renamed as $_\n" if $verbose;
    }
    else
    {
    warn  "Can't rename $was $_: $!\n";
    }
}

gnowk
Sun, 25 Oct 2009 04:53:11 +0000

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