Windows PowerShell Exit Codes

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

Answers:

A normal termination will set the exitcode to 0
An uncaught THROW will set the exitcode to 1
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
Visit the Windows PowerShell Team blog at: http://blogs.msdn.com/PowerShell
Visit the Windows PowerShell ScriptCenter at
http://www.microsoft.com/technet/scriptcenter/hubs/msh.mspx

巴特西