管道Windows批处理反引号 [英] Pipeline in Windows batch backquote

问题描述

我想看看我如何使用，还是难逃在Windows批反引号的管道，就像在Unix中炮弹。假设我有这样的：

I would like to see how I can use, or escape pipeline in a back quote in windows batch just like in Unix shells. Suppose I have this:

FOR /F "usebackq delims=" %i IN (`date /t`) DO @set TODAY=%i
echo %TODAY%

这会给我在今天的变量的日期。但我想有这样的1个或多个管道的工作：

This will give me the date in TODAY variable. But I want to have this 1 or more pipeline working:

FOR /F "usebackq delims=" %i IN (`date /t | cut -c 1-3`) DO @set TODAY=%i

cmd.exe的抱怨宁可这样，我想我需要一个逃生机制？<​​/ P>

cmd.exe complains err like this I think I need an escape mechanism?

| was unexpected at this time.

所以，这是可行的？怎么样？请注意，我有充分的GNU的coreutils和PATH大多数的好东西，所以我可以使用剪切就像例子。

So, is this doable? How? Please note that I have full gnu coreutils and most goodies in PATH so I can use cut just as example.

推荐答案

转义字符 ^ 。

下面是命令，用设置按替换回声末做起来很友好。

Here is the command, with set replaced by echo at the end to make it SO friendly.

FOR /F "usebackq delims=" %i IN (`date /t ^| cut -c 1-3`) DO @echo TODAY=%i
TODAY=18/

（因人而异，我有一个约会法语语言环境）

(YMMV, I have a French locale for date)

date /t
18/02/2013

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