Inside a batch file on Windows, I use 7-zip like this:
...\right_path\7z a output_file_name.zip file_to_be_compressed
How could I check the exit code of 7z and take the appropriate action ?
asked Oct 1, 2010 at 4:47
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2Also asked on Stackoverflow: How do I get the application exit code from a Windows command line?– DeannaJun 24, 2013 at 11:42
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4 Answers
Test for a return code greater than or equal to 1:
if ERRORLEVEL 1 echo Error
or
if %ERRORLEVEL% NEQ 0 echo Error
or test for a return code equal to 0:
if %ERRORLEVEL% EQU 0 echo OK
You can use other commands such as GOTO where I show echo.
answered Oct 1, 2010 at 4:58
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I tried your code. I got the following error:
0 was unexpected this time.Oct 1, 2010 at 5:13 -
2@Misha: You may have tried it with the percent signs the way I originally posted it. Try it without them or try the other versions I added. Oct 1, 2010 at 5:24
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2Found cases where
%ERRORLEVEL%is 0 even though an error occurred. Happened when checking%ERRORLEVEL%in a cmd file. Tryingstart /waitdidn't work. The only thing that worked isif errorlevel 1 (...)Apr 13, 2015 at 12:59 -
5Be aware, errorlevel is not an environment variable. Here's a good summary of the pitfalls and subtleties. Jun 17, 2015 at 6:18
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1I disagree, it's the perfect place. The question is how to check the exit code of the last command. if the exit code is -1 then we should know about it. Regardless of whether that is an application error code or a system error code, it's still an error code and it should be trapped and handled. I want to know about all errors, so NEQ 0 wins for me every time over GEQ 1... Dec 31, 2019 at 16:10
This really works when you have: App1.exe calls -> .bat which runs --> app2.exe
App2 returns errorlevel 1... but you need to catch that in the .bat and re-raise it to app1... otherwise .bat eats the errorlevel and app1 never knows.
Method:
In .bat:
app2.exe
if %ERRORLEVEL% GEQ 1 EXIT /B 1
This is a check after app2 for errorlevel. If > 0, then the .bat exits and sets errorlevel to 1 for the calling app1.
answered Apr 19, 2013 at 5:07
Jonesome Reinstate MonicaJonesome Reinstate Monica
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6it could be even better if you returned the same error back to app1. i didn't try this out, but it should work :
if %ERRORLEVEL% GEQ 1 EXIT /B %ERRORLEVEL%.– ViktorJul 18, 2014 at 11:24 -
3At least in Windows, %ERRORLEVEL% can be a negative number (e.g. I have a program that returns -1 on errors).
IF %ERRORLEVEL% NEQ 0 EXIT /B %ERRORLEVEL%might be a better option. But you really need to know what the program returns on errors. Some programs return certain non-zero codes for special types of success. Nov 13, 2014 at 19:23 -
If app2 is the last thing you run in the bat file, the error code will propagate. Jul 5, 2018 at 11:31
I had a batch script in Teamcity pipeline and it did not exit after it's child script did exit with code 1.
To fix the problem I added this string IF %ERRORLEVEL% NEQ 0 EXIT 1 after the child script call.
main-script.bat
...some code
call child-script.bat
IF %ERRORLEVEL% NEQ 0 EXIT 1
...some code
After the child script call exit result is saved to %ERRORLEVEL%. If it did exit with an error %ERRORLEVEL% would not be equal to 0 and in this case we exit with code 1 (error).
Try this:
cd.>nul | call Your_7z_File.Bat && Goto :Next || Goto :Error
:: Or...
cd.>nul | ...\right_path\7z.exe a output_file_name.zip file_to_be_compressed && Goto :Next || Goto :Error
1) Set errorlevel == 0
cd.>nul2) Redirect by | to simultaneously call Your_7z_File.Bat
cd.>nul | call Your_7z_File.Bat3) Lets the output/errorlevel to a conditional execution && and || filter the next action
cd.>nul | call Your_7z_File.Bat && Goto :Next || Goto :ErrorYou can also test it in command line adding echo/:
cd.>nul | call Your_7z_File.Bat && echo\Goto :Next || echo\Goto :Error