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How to get exit code from command prompt?
Posted: 09 Sep 2016 07:47
by bdeshi
How do I get the exit code of a command with runret?
runret returns the standard output only. So I thought of echoing %errorlevel% to stdout, but this doesn't work:
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::echo runret("%COMSPEC% /c reg QUERY HKCU\Environment /ve & echo %errorlevel%", "%WINDIR%\system32\");
::echo runret("%COMSPEC% /c reg QUERY HKCU\Environment /v NONEXISTENT_VALUE & echo %errorlevel%", "%WINDIR%\system32\");
Both return errorlevel as 0 even though the second one should fail.
I know about exit-code based conditional running with && and ||, but this still doesn't give me the
actual exitcode.
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::echo runret("%COMSPEC% /c reg QUERY HKCU\Environment /ve && echo success || echo fail", "%WINDIR%\system32\");
::echo runret("%COMSPEC% /c reg QUERY HKCU\Environment /v NONEXISTENT_VALUE && echo success || echo fail", "%WINDIR%\system32\");
No help when the exit code is something other than 0 and 1.
Re: How to get exit code from command prompt?
Posted: 09 Sep 2016 09:09
by highend
Maybe you get the exit code from calling %COMSPEC% in this case?
Re: How to get exit code from command prompt?
Posted: 09 Sep 2016 09:19
by bdeshi
without running via comspec, only the reg command's output is returned, no access to the echo commands. And reg says syntax invalid.
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::echo runret("reg QUERY HKCU\Environment /ve & echo %errorlevel%", "%WINDIR%\system32\");
::echo runret("reg QUERY HKCU\Environment /ve && echo 0 || echo 1", "%WINDIR%\system32\");
Re: How to get exit code from command prompt?
Posted: 09 Sep 2016 09:30
by highend
Sure, it's not running inside %comspec% any more
That seems like a similar cornercase we had the last time with runret.
Re: How to get exit code from command prompt?
Posted: 09 Sep 2016 09:45
by bdeshi
there's possibility of a wish for an additional parameter of runret to return the exitcode.
Re: How to get exit code from command prompt?
Posted: 09 Sep 2016 11:35
by admin
Next beta pass 2 as flags. But it will always return 259 (STILL_ACTIVE) I think. Not much use...?
Re: How to get exit code from command prompt?
Posted: 09 Sep 2016 13:00
by bdeshi
Thanks but that wouldn't help at all obviously. Ideally it should return the proper exit code after the process has exited.
Re: How to get exit code from command prompt?
Posted: 09 Sep 2016 13:13
by admin
I can loop WaitForSingleObject until it's finished. Then get the exitcode. Ok?
Re: How to get exit code from command prompt?
Posted: 09 Sep 2016 13:18
by bdeshi
Re: How to get exit code from command prompt?
Posted: 09 Sep 2016 18:20
by bdeshi
Molto grazie!
Works perfectly fine with the reg examples (obviously except the multi-commands).
Tested with a simple ahk script too: Exit, <ExitCode> ; Returns the proper <exitcode>
Re: How to get exit code from command prompt?
Posted: 09 Sep 2016 18:34
by admin
Cool!
BTW, your link never worked. Site is dead.
Re: How to get exit code from command prompt?
Posted: 09 Sep 2016 18:41
by bdeshi
weird. The page comes up intact on my browser...
There's no point anymore, but this link might work (Internet Archive):
http://wayback.archive.org/web/20160103 ... /Tip/18663
Re: How to get exit code from command prompt?
Posted: 09 Sep 2016 18:50
by admin
OK, that worked. It's pretty the same what I did.