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Date:	Fri, 11 Oct 2013 11:53:27 -0400
From:	Christopher Faylor <cgf-use-the-mailinglist-please AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: ERRORLEVEL not returning to Cygwin shell
Message-ID:	<20131011155327.GA2240@ednor.casa.cgf.cx>
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On Fri, Oct 11, 2013 at 10:42:47AM -0400, Earnie Boyd wrote:
>On Fri, Oct 11, 2013 at 10:35 AM, Nellis, Kenneth wrote:
>>> From: Larry Hall (Cygwin)
>>>
>>> On 10/11/2013 8:27 AM, paul hermeneutic wrote:
>>> > I am using CYGWIN_NT-5.1 PAC047922 1.7.25(0.270/5/3) 2013-08-31 20:39
>>> > i686 Cygwin
>>> >
>>> > An exit code returned by a DOS batch file does not seem to be coming
>>> > back to the Cygwin shell. I am using bash.
>>> >
>>> > $ cat myexit.bat
>>> > @echo off
>>> > set EXITCODE=%1
>>> > echo got here with %1
>>> > exit /b %EXITCODE%
>>> >
>>> > $ cmd /c c:/DOCUME~1/pwatson/bin/myexit.bat 8
>>> > got here with 8
>>> >
>>> > $ echo $?
>>> > 0
>>>
>>> WJFFM.  Same version, same arch.  Guess you need to do some more digging.
>>
>> FWIW, I get the same results as the OP:
>>
>> $ cat myexit.bat
>> @echo off
>> set EXITCODE=%1
>> echo got here with %1
>> exit /b %EXITCODE%
>> $ cmd /c myexit.bat 8
>> got here with 8
>> $ echo $?
>> 0
>> $ uname -r
>> 1.7.25(0.270/5/3)
>> $
>>
>> For grins, I tried with both Unix and DOS line endings. Made no difference.
>
>Cygwin has no control and loses all communication with the cmd.exe
>child process.  How is it supposed to return anything other than an
>exit code of 0 because cmd.exe exited normally.  You simply cannot mix
>Windows and Cygwin like this.

exit /b seems to cause CMD to exit with that value.  It does for me:

  % cmd /c myexit.bat 9; echo SAW $?
  got here with 9
  SAW 9

This is on Windows 7 64.  Maybe other versions of Windows differ.

cgf

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