How to automatically stop all started processes at the end of a powershell script

Question

I'm writing a powershell script, that must start some background processes in order to automate a testing process.

# Start Server
$server=Start-Process -FilePath "server"  -PassThru

# Does some testing
# Eventually exit 1 will be called

# Stop Server
Stop-Process -Id $server.Id

In case an abnormal exit occured during my testing process I'm not able to stop all started processes with my script an I'm left with some dangling processes. How can I automatically kill all started processes of my script in case the script is exited?

AdamL · Accepted Answer · 2020-07-28 10:03:20Z

2

You could store all started processes information in an array. Then use trap which will run all your cleanup statements when terminating error occurs.

$proclist = @()
$proclist += Start-Process -FilePath "server" -PassThru

# testing

trap {
 foreach ($proc in $proclist) {
  Stop-Process -Id $proc.Id -Force -ErrorAction continue -Verbose
 }
}

answered Jul 28, 2020 at 10:03

AdamL

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1 Comment

Aleph0 Over a year ago

Thanks for the fast reply. I was not aware of trap.

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