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February 25, 2010 23:27
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#!/usr/bin/perl -w | |
# | |
# This script was developed by Robin Barker (Robin.Barker@npl.co.uk), | |
# from Larry Wall's original script eg/rename from the perl source. | |
# | |
# This script is free software; you can redistribute it and/or modify it | |
# under the same terms as Perl itself. | |
# | |
# Larry(?)'s RCS header: | |
# RCSfile: rename,v Revision: 4.1 Date: 92/08/07 17:20:30 | |
# | |
# $RCSfile: rename,v $$Revision: 1.5 $$Date: 1998/12/18 16:16:31 $ | |
# | |
# $Log: rename,v $ | |
# Revision 1.5 1998/12/18 16:16:31 rmb1 | |
# moved to perl/source | |
# changed man documentation to POD | |
# | |
# Revision 1.4 1997/02/27 17:19:26 rmb1 | |
# corrected usage string | |
# | |
# Revision 1.3 1997/02/27 16:39:07 rmb1 | |
# added -v | |
# | |
# Revision 1.2 1997/02/27 16:15:40 rmb1 | |
# *** empty log message *** | |
# | |
# Revision 1.1 1997/02/27 15:48:51 rmb1 | |
# Initial revision | |
# | |
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 = <STDIN>; | |
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 $_: $!\n"; | |
} | |
} | |
__END__ | |
=head1 NAME | |
rename - renames multiple files | |
=head1 SYNOPSIS | |
B<rename> S<[ B<-v> ]> S<[ B<-n> ]> S<[ B<-f> ]> I<perlexpr> S<[ I<files> ]> | |
=head1 DESCRIPTION | |
C<rename> | |
renames the filenames supplied according to the rule specified as the | |
first argument. | |
The I<perlexpr> | |
argument is a Perl expression which is expected to modify the C<$_> | |
string in Perl for at least some of the filenames specified. | |
If a given filename is not modified by the expression, it will not be | |
renamed. | |
If no filenames are given on the command line, filenames will be read | |
via standard input. | |
For example, to rename all files matching C<*.bak> to strip the extension, | |
you might say | |
rename 's/\.bak$//' *.bak | |
To translate uppercase names to lower, you'd use | |
rename 'y/A-Z/a-z/' * | |
=head1 OPTIONS | |
=over 8 | |
=item B<-v>, B<--verbose> | |
Verbose: print names of files successfully renamed. | |
=item B<-n>, B<--no-act> | |
No Action: show what files would have been renamed. | |
=item B<-f>, B<--force> | |
Force: overwrite existing files. | |
=back | |
=head1 ENVIRONMENT | |
No environment variables are used. | |
=head1 AUTHOR | |
Larry Wall | |
=head1 SEE ALSO | |
mv(1), perl(1) | |
=head1 DIAGNOSTICS | |
If you give an invalid Perl expression you'll get a syntax error. | |
=head1 BUGS | |
The original C<rename> did not check for the existence of target filenames, | |
so had to be used with care. I hope I've fixed that (Robin Barker). | |
=cut |
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