如何从python执行命令提示符命令 [英] How to execute a command prompt command from python

问题描述

我试过这样的事情，但没有效果:

command = "cmd.exe"proc = subprocess.Popen(command, stdin = subprocess.PIPE, stdout = subprocess.PIPE)proc.stdin.write("dir c:\\")

解决方案

你可能想尝试这样的事情:

command = "cmd.exe/C dir C:\\"

我不认为你可以输入 cmd.exe...如果你来自 unix 背景，那么 cmd.exe 有一些丑陋的疣！

根据 Sven Marnach 的说法，您可以通过管道传输到 cmd.exe.我尝试在 python shell 中执行以下操作:

<预><代码>>>>导入子流程>>>proc = subprocess.Popen('cmd.exe', stdin = subprocess.PIPE, stdout = subprocess.PIPE)>>>stdout, stderr = proc.communicate('dir c:\\')>>>标准输出'Microsoft Windows [版本 6.1.7600]\r\n版权所有 (c) 2009 Microsoft Corporation.保留所有权利.\r\n\r\nC:\\Python25>更多?'

如您所见，您还有一些工作要做(仅返回第一行)，但您或许可以让它发挥作用...

I tried something like this, but with no effect:

command = "cmd.exe"
proc = subprocess.Popen(command, stdin = subprocess.PIPE, stdout = subprocess.PIPE)
proc.stdin.write("dir c:\\")

解决方案

You probably want to try something like this:

command = "cmd.exe /C dir C:\\"

I don't think you can pipe into cmd.exe... If you are coming from a unix background, well, cmd.exe has some ugly warts!

EDIT: According to Sven Marnach, you can pipe to cmd.exe. I tried following in a python shell:

>>> import subprocess
>>> proc = subprocess.Popen('cmd.exe', stdin = subprocess.PIPE, stdout = subprocess.PIPE)
>>> stdout, stderr = proc.communicate('dir c:\\')
>>> stdout
'Microsoft Windows [Version 6.1.7600]\r\nCopyright (c) 2009 Microsoft Corporatio
n.  All rights reserved.\r\n\r\nC:\\Python25>More? '

As you can see, you still have a bit of work to do (only the first line is returned), but you might be able to get this to work...

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