How to return error code 1 on error from PowerShell?

Question

Can you give an example how to return error code 1 on error using PowerShell?

For example handling this situation:

if ($serviceUserName) {
  cmd /c $serviceBinaryFinalPath install -username:$serviceUserName -password:$serviceUserPassword -servicename:"$ServiceName" -displayname:"$serviceDisplayName" -description:"$serviceDescription"
} else {
  cmd /c $serviceBinaryFinalPath install --localsystem -servicename:"$ServiceName" -displayname:"$serviceDisplayName" -description:"$serviceDescription"
}

try {bla-bla-bla} catch {exit 1}

4c74356b41
– 4c74356b41

2017-01-17 14:51:39 +00:00
Commented Jan 17, 2017 at 14:51 — 4c74356b41
– 4c74356b41, Commented Jan 17, 2017 at 14:51
Why cmd /c? You don't need it.

Bill_Stewart
– Bill_Stewart

2017-01-17 17:54:27 +00:00
Commented Jan 17, 2017 at 17:54 — Bill_Stewart
– Bill_Stewart, Commented Jan 17, 2017 at 17:54

Ansgar Wiechers · Accepted Answer · 2017-01-17 15:04:15Z

12

You're running external commands there, so you need to check the automatic variable $LastExitCode for detecting errors:

if ($LastExitCode -ne 0) {
  exit 1
}

Or just exit with the exit code of the last external command:

exit $LastExitCode

Note that some external commands (robocopy for instance) use exit codes not only for signaling errors, but also for providing non-error status information.

edited Jan 17, 2017 at 15:04

answered Jan 17, 2017 at 15:01

Ansgar Wiechers

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1 Comment

4c74356b41 Over a year ago

oh, I didn't even notice he isn't using powershell command :(

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