输出重定向到Windows中的另一个命令的命令行参数 [英] Redirecting output to a command-line argument of another command in Windows

问题描述

我怎样才能在Windows中，使用脚本/命令的输出作为另一个脚本的参数？
（A管|不会在这里工作，因为其他脚本无法从标准输入读取）

How can I, in Windows, use the output of a script/command as an argument for another script? (A pipe | will not work here, since that other script doesn't read from the standard input)

太澄清：我有AnotherScript需要一个参数arg的，例如：

Too clarify: I have AnotherScript that needs an argument arg, e.g.:

AnotherScript 12

现在我想要的参数（12中的例子）来自一个脚本输出，称之为ScriptB。所以我想沿着东西线

now I want the argument (12 in the example) to come from the output of a script, call it ScriptB. So I would like something along the lines of

AnotherScript (ScriptB)

该AnotherScript实际上是需要一个参数一个Python脚本，ScriptB是一个cygwin bash脚本，产生一些数字，所以我想用它的方式是一样的东西：

The AnotherScript is actually a python script that requires an argument, and ScriptB is a cygwin bash script that produces some number, so the way I would like to use it is something like:

c:\Python26\python.exe AnotherScript (c:\cygwin|bin|bash --login -i ./ScriptB)

感谢您的答案。然而，鉴于费力'为'结构需要，我已经重写AnotherScript从标准输入读取。这似乎是一个更好的解决方案。

Thanks for the answers. However, given the laborious 'for' construct required, I've rewritten AnotherScript to read from the standard input. That seems like a better solution.

推荐答案

请注意：所有这一切都需要的命令是在一个批处理文件。因此，双％迹象。

Note: All this requires the commands to be in a batch file. Hence the double % signs.

您可以使用为命令捕获命令的输出：

You can use the for command to capture the output of the command:

for /f "usebackq delims=" %%x in (`ScriptB`) do set args=%%x

，那么你可以使用输出另一个命令：

then you can use that output in another command:

AnotherScript %args%

这将导致％ARGS％来包含 ScriptB 的输出的最后一行，虽然。如果它只返回一行就可以擀成一条线这样的：

This will cause %args% to contain the last line from ScriptB's output, though. If it only returns a single line you can roll this into one line:

for /f "usebackq delims=" %%x in (`ScriptB`) do AnotherScript %%x

在一个批处理文件外使用，你必须使用％X 而不是 %% X 。

When used outside a batch file you have to use %x instead of %%x.

但是，如果 ScriptB 返回多个行， AnotherScript 运行，为每个行。您可以绕过这个，虽然只在一个批处理文件，由破后的第一个循环迭代：

However, if ScriptB returns more than one line, AnotherScript runs for each of those lines. You can circumvent this—though only within a batch file—by breaking after the first loop iteration:

for /f "usebackq delims=" %%x in (`ScriptB`) do AnotherScript %%x & goto :eof

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