使用regex和“重命名”版本从“util-linux”

I’m using a GNU/Linux distribution where the utility rename comes from util-linux and I want to make full use of regular (Perl or POSIX) expressions with it.

我使用的是GNU/Linux发行版，该实用程序重命名来自util-linux，我希望充分利用其中的正则(Perl或POSIX)表达式。

There are two versions of rename :

重命名有两个版本:

The “Perl” version, with syntax rename 's/^fgh/jkl/' fgh*
“Perl”版本,语法重命名的s / ^ fgh / . jkl的fgh *
The util-linux version, with syntax rename fgh jkl fgh*
使用语法重命名fgh jkl fgh*的util-linux版本

If the use of regexes seems pretty obvious with the first one, to which I have no easy access. However, I’m confused about the second one: I could not find any relevant documentation or examples on the possible use, and in that case the format, of the regular expressions to use.

如果在第一个例子中regexe的使用看起来非常明显，我无法轻松访问第一个例子。但是，我对第二个问题感到困惑:我找不到关于可能使用的正则表达式的任何相关文档或示例，在这种情况下，也找不到要使用的正则表达式的格式。

Let’s take, to make a simple example, a directory containing:

我们来举一个简单的例子，一个包含以下内容的目录:

foo_a1.ext
foo_a32.ext
foo_c18.ext
foo_h12.ext

I want to use a syntax like one of these two lines:

我想使用一种语法，就像这两行:

rename "foo_[a-z]([0-9]{1,2}).ext" "foo_\1.ext" *
rename "foo_[:alpha:]([:digit:]{1,2}).ext" "foo_\1.ext" *

for which the expected output would be:

预期产出为:

foo_1.ext
foo_32.ext
foo_18.ext
foo_12.ext

Of course this does not work! Either I’m missing something obvious, or there is no implemented way to use actual regular expressions with this tool.

当然这行不通!或者我遗漏了一些明显的东西，或者没有实现的方法来使用这个工具使用实际的正则表达式。

(Please note that I am aware of the other possibilities for renaming files with regular expressions in a shell interpreter; this question aims at a specific version of the rename tool.)

(请注意，我知道在shell解释器中使用正则表达式重命名文件的其他可能性;这个问题针对的是重命名工具的特定版本。

2 个解决方案

#1

Here is the manual page: http://linux.die.net/man/1/rename. It is pretty straightforward:

这里是手册页面:http://linux.die.net/man/1/rename。这是很简单的:

rename from to file...

重命名的文件……

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

rename将对指定的文件重命名为to，替换其名称中第一个出现的from。

I believe there are no regexes, it is just plain substring match.

我认为没有regexes，它只是普通的子字符串匹配。

#2

-1

The following command gives the expected result with your input file but using the perl version:

以下命令给出输入文件的预期结果，但使用perl版本:

rename 's/foo_\D+(\d+)/foo_$1/' *.ext

You can test the command using -n option to rename

您可以使用-n选项测试命令重命名

#1