如何正确检查进程是否正在运行并停止它 [英] How to Correctly Check if a Process is running and Stop it

问题描述

确定进程是否正在运行(例如 FireFox)并停止它的正确方法是什么?

What is the correct way of determining if a process is running, for example FireFox, and stopping it?

我环顾四周，发现最好的方法是:

I did some looking around and the best way I found was this:

if((get-process "firefox" -ea SilentlyContinue) -eq $Null){ 
        echo "Not Running" 
}

else{ 
    echo "Running"
    Stop-Process -processname "firefox"
 }

这是理想的做法吗?如果不是，那么正确的做法是什么?

Is this the ideal way of doing it? If not, what the correct way of doing so?

推荐答案

按照您的操作方式，您需要对流程进行两次查询.Lynn 还提出了一个很好的观点，那就是首先要友善.我可能会尝试以下操作:

The way you're doing it you're querying for the process twice. Also Lynn raises a good point about being nice first. I'd probably try something like the following:

# get Firefox process
$firefox = Get-Process firefox -ErrorAction SilentlyContinue
if ($firefox) {
  # try gracefully first
  $firefox.CloseMainWindow()
  # kill after five seconds
  Sleep 5
  if (!$firefox.HasExited) {
    $firefox | Stop-Process -Force
  }
}
Remove-Variable firefox

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