bin/old/rename

   1 #!/usr/bin/perl -w
   2 #
   3 #  This script was developed by Robin Barker (Robin.Barker@npl.co.uk),
   4 #  from Larry Wall's original script eg/rename from the perl source.
   5 #
   6 #  This script is free software; you can redistribute it and/or modify it
   7 #  under the same terms as Perl itself.
   8 #
   9 # Larry(?)'s RCS header:
  10 #  RCSfile: rename,v   Revision: 4.1   Date: 92/08/07 17:20:30
  11 #
  12 # $RCSfile: rename,v $$Revision: 1.5 $$Date: 1998/12/18 16:16:31 $
  13 #
  14 # $Log: rename,v $
  15 # Revision 1.5  1998/12/18 16:16:31  rmb1
  16 # moved to perl/source
  17 # changed man documentation to POD
  18 #
  19 # Revision 1.4  1997/02/27  17:19:26  rmb1
  20 # corrected usage string
  21 #
  22 # Revision 1.3  1997/02/27  16:39:07  rmb1
  23 # added -v
  24 #
  25 # Revision 1.2  1997/02/27  16:15:40  rmb1
  26 # *** empty log message ***
  27 #
  28 # Revision 1.1  1997/02/27  15:48:51  rmb1
  29 # Initial revision
  30 #
  31
  32 use strict;
  33
  34 use Getopt::Long;
  35 Getopt::Long::Configure('bundling');
  36
  37 my ($verbose, $no_act, $force, $op);
  38
  39 die "Usage: rename [-v] [-n] [-f] perlexpr [filenames]\n"
  40     unless GetOptions(
  41         'v|verbose' => \$verbose,
  42         'n|no-act'  => \$no_act,
  43         'f|force'   => \$force,
  44     ) and $op = shift;
  45
  46 $verbose++ if $no_act;
  47
  48 if (!@ARGV) {
  49     print "reading filenames from STDIN\n" if $verbose;
  50     @ARGV = <STDIN>;
  51     chop(@ARGV);
  52 }
  53
  54 for (@ARGV) {
  55     my $was = $_;
  56     eval $op;
  57     die $@ if $@;
  58     next if $was eq $_; # ignore quietly
  59     if (-e $_ and !$force)
  60     {
  61         warn  "$was not renamed: $_ already exists\n";
  62     }
  63     elsif ($no_act or rename $was, $_)
  64     {
  65         print "$was renamed as $_\n" if $verbose;
  66     }
  67     else
  68     {
  69         warn  "Can't rename $was $_: $!\n";
  70     }
  71 }
  72
  73 __END__
  74
  75 =head1 NAME
  76
  77 rename - renames multiple files
  78
  79 =head1 SYNOPSIS
  80
  81 B<rename> S<[ B<-v> ]> S<[ B<-n> ]> S<[ B<-f> ]> I<perlexpr> S<[ I<files> ]>
  82
  83 =head1 DESCRIPTION
  84
  85 C<rename>
  86 renames the filenames supplied according to the rule specified as the
  87 first argument.
  88 The I<perlexpr>
  89 argument is a Perl expression which is expected to modify the C<$_>
  90 string in Perl for at least some of the filenames specified.
  91 If a given filename is not modified by the expression, it will not be
  92 renamed.
  93 If no filenames are given on the command line, filenames will be read
  94 via standard input.
  95
  96 For example, to rename all files matching C<*.bak> to strip the extension,
  97 you might say
  98
  99         rename 's/\.bak$//' *.bak
 100
 101 To translate uppercase names to lower, you'd use
 102
 103         rename 'y/A-Z/a-z/' *
 104
 105 =head1 OPTIONS
 106
 107 =over 8
 108
 109 =item B<-v>, B<--verbose>
 110
 111 Verbose: print names of files successfully renamed.
 112
 113 =item B<-n>, B<--no-act>
 114
 115 No Action: show what files would have been renamed.
 116
 117 =item B<-f>, B<--force>
 118
 119 Force: overwrite existing files.
 120
 121 =back
 122
 123 =head1 ENVIRONMENT
 124
 125 No environment variables are used.
 126
 127 =head1 AUTHOR
 128
 129 Larry Wall
 130
 131 =head1 SEE ALSO
 132
 133 mv(1), perl(1)
 134
 135 =head1 DIAGNOSTICS
 136
 137 If you give an invalid Perl expression you'll get a syntax error.
 138
 139 =head1 BUGS
 140
 141 The original C<rename> did not check for the existence of target filenames,
 142 so had to be used with care.  I hope I've fixed that (Robin Barker).
 143
 144 =cut