linux批量重命名文件

Linux下批量重命令文件
我们可能会碰到类似的问题，以前我不知道linux下面还有rename这个命令，有时候会自己写个小脚本来批量重命名文件，今天google了以下，看到下面这个网站上有介绍：
%E6%89%B9%E9%87%8F%E9%87%8D%E5%91%BD%E5%90%8D%E6%96%87%E4%BB%B6

将当前目录里面所有.txt的文件重命名为.sql的文件：

rename 's/\.txt$/\.sql/' *.txt

去掉当前目录里面所有.sql结尾文件的后缀名
rename 's/\.sql$//' *.sql

以下是/usr/bin/rename的内容：

#!/usr/bin/perl -w
#
#  This script was developed by Robin Barker ([e-mail]),
#  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 = ;
    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 S<[ B<-v> ]> S<[ B<-n> ]> S<[ B<-f> ]> I S<[ I ]>

=head1 DESCRIPTION

C
renames the filenames supplied according to the rule specified as the
first argument.
The I
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 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