Windows PowerShell Exit Codes

PSMDTAG:FAQ: How can my script control the PowerShell exit code?

Answers:

1.      A normal termination will set the exitcode to 0

2.      An uncaught THROW will set the exitcode to 1

3.      The EXIT statement will stop the process and set the exitcode to whatever is specified.

c:\>powershell -noprofile -command "Write-output Test"
Test

c:\>echo %errorlevel%
0

c:\>powershell -noprofile -command "Write-output Test; throw 'ERROR'"
Test
ERROR
At line:1 char:25
+ Write-output Test; throw  <<<< 'ERROR'

c:\>echo %errorlevel%
1

c:\>powershell -noprofile -command "Write-output Test; exit 31492"
Test

c:\>echo %errorlevel%
31492

Jeffrey Snover [MSFT]
Windows PowerShell/MMC Architect
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