windows子命令评估 [英] windows subcommand evaluation

问题描述

linux& unix shell可以处理这样的子命令。

  $>命令`子命令
  

是否与Windows cmd shell类似的功能？

命令的变体来获得类似的结果：

$

b $ b

  FOR / Fusebackq tokens = *%% a IN（`subcommand`）DO @command %% a 
  

一个很大的区别（除了不直观和非常丑陋），它会执行 command 一次对于子命令生成的每一行

请注意，在脚本文件中，百分号必须加倍非双倍百分比符号，如果你有一些理由想在命令行执行此操作）。

linux & unix shells can process subcommands like this.

$> command `subcommand`

does windows cmd shell similar feature?

解决方案

You can get something similar using a variation of the for command:

FOR /F "usebackq tokens=*" %%a IN (`subcommand`) DO @command %%a

One big difference (besides being unintuitive and much uglier) is that it'll execute command once for each line produced by subcommand

Note that inside a script file, the percent signs must be doubled up (use non-doubled percent signs if you have some reason to want to do this at the command line).

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