Linux命令之rename

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本文对比了Linux系统中util-linux工具集的rename命令与Perl版本的rename命令。Perl版rename支持复杂的Perl表达式，适用于批量文件重命名；而util-linux-rename则用于简单的字符串替换。文章还介绍了两个版本rename命令的具体用法。

一、引言

今天才知道Linux下的rename有两个版本，util-linux工具集的rename和Perl版本的rename，而两者的用法是明显不一样的，Perl版rename相对比较强大

二、对比

perl-rename

RENAME(1) Perl Programmers Reference Guide RENAME(1)

NAME
rename - renames multiple files

SYNOPSIS
rename [ -v ] [ -n ] [ -f ] perlexpr [ files ]

DESCRIPTION
"rename" renames the filenames supplied according to the rule specified as the first argument. The perlexpr argument is a Perl expression which is expected
to modify the $_ 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 "*.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/' *

OPTIONS
-v, --verbose
Verbose: print names of files successfully renamed.

-n, --no-act
No Action: show what files would have been renamed.

-f, --force
Force: overwrite existing files.

ENVIRONMENT
No environment variables are used.

AUTHOR
Larry Wall

SEE ALSO
mv(1), perl(1)

DIAGNOSTICS
If you give an invalid Perl expression you'll get a syntax error.

BUGS
The original "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).

perl v5.18.2 2014-01-14 RENAME(1)

可以看到它的使用方法是 rename [ -v ] [ -n ] [ -f ] perlexpr [ files ] 支持perl正则表达式的，这就是它强大的原因

util-linux-rename

RENAME(1)                  Linux Programmer’s Manual                 RENAME(1)



NNAAMMEE
       rename - Rename files

SYNOPSIS
       rename from to file...
       rename -V

DESCRIPTION
       rename  will  rename  the specified files by replacing the first occurrence of from in their name by to.


       -V, --version
              Display version information and exit.


       For example, given the files
              foo1, ..., foo9, foo10, ..., foo278, the commands

              rename foo foo0 foo?
              rename foo foo0 foo??

       will turn them into foo001, ..., foo009, foo010, ..., foo278.

       And
              rename .htm .html *.htm

       will fix the extension of your html files.


SEE ALSO
       mmv(1), mv(1)

AVAILABILITY
       The rename command is part of the util-linux-ng package and  is  avail-
       able from ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/.



                                1 January 2000                       RENAME(1)