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Snippet Name: Rename Files Interactively

Description: Very handy way to step through files and rename them.

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Comment: (none)

Author: CoderZone
Language: PERL
Highlight Mode: PERL
Last Modified: December 03rd, 2010

use warnings;
use strict;
use File::Glob qw(:globally :nocase);
use File::Copy;
my $editor = '/bin/vi';
my @files = @ARGV;
die "Usage: $0 FILES\n" unless ($#files >= 0);
print join( $/, @files ), $/;
for my $file (@files) {
    my $tmp = '/tmp/ren.' . $$;
    die "Can't write to '$tmp': $!\n" unless open( TMP, ">$tmp" );
    print TMP "$file";
    close TMP;
    system("$editor $tmp");
    die "Can't read '$tmp': $!\n" unless open( TMP, $tmp );
    chomp( my $new = <TMP> );
    close TMP;
    if ( $new eq $file ) {
        print "'$file': No change.\n";
    elsif ( -f $new ) {
        print "'$new': Already exists.\n";
    else {
        die "Can't rename '$file' to '$new': $!\n" unless move( $file, $new );
        print "mv '$file' -> '$new'\n";
    unlink $tmp;
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