如何在 Powershell 中等待和终止超时进程 [英] How to wait and kill a timeout process in Powershell

问题描述

在 Windows 7 桌面上使用 Powershell 2.0

Using Powershell 2.0 in a Windows 7 desktop

我想创建一个进程来运行 ant 命令，然后等待该进程在几分钟内完成.如果超时并且进程仍在运行，那么我想杀死它.

I want to create a process to run an ant command, and then wait for that process to finish in several minutes. If time out and the process still running then I want to kill it.

我写了一些代码如下:

$p = Start-Process "cmd.exe" '/c ant execute' -PassThru -RedirectStandardOutput $log_file_path
Wait-Process -id $p.ID -timeout 100
if(!$p.hasExited) {
    echo "kill the process"
    $p.Kill()
    #Stop-Process $p.ID
}

Start-Sleep -s 30

# continue to do other things

虽然进程没有被杀死，但即使在 Start-Sleep 语句被执行之后它仍然在运行.

Although the process didn't get killed, it's still running even after the Start-Sleep statement get executed.

我也尝试过使用 Stop-Process 命令，如注释掉的行所示，不走运，进程仍在运行.

I also tried with Stop-Process command, as the commented out line indicates, no luck, the process still running.

我可能漏掉了一些重要的东西，请提供线索.

I may have missed something important, please give a clue.

原来cmd窗口里还有一些子进程在运行，只杀掉cmd进程是不够的.

It turns out there are some child processes still running in the cmd window, kill only the cmd process is not enough.

我终于用以下代码完成了工作:

I finally get the job done with following code:

if(!$p.hasExited) {
    echo "kill the process"
    taskkill /T /F /PID $p.ID
    #$p.Kill()
    #Stop-Process $p.ID
}

推荐答案

如果要杀死整个进程树，还需要找到并停止子进程.

If you want to kill the entire process tree, you need to also find and stop the child processes.

这是一篇很好的文章，解释了它并向您展示了如何做到这一点:

Here's a good article that explains it and shows you how to do that:

http://powershell.com/cs/blogs/tobias/archive/2012/05/09/managing-child-processes.aspx

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