How do I get the application exit code from a Windows command line?
I am running a program and want to see what its return code is (since it returns different codes based on different errors).
I know in Bash I can do this by running
What do I do when using cmd.exe on Windows?
There are two ways:
The results are stored in a pseudo environment variable named errorlevel so...
echo Exit Code is %errorlevel%
and a special syntax of the if command:
See if /? for details.
@echo off my_nify_exe.exe if errorlevel 1 ( echo Failure Reason Given is %errorlevel% exit /b %errorlevel% )
Warning: If you set an environment variable name errorlevel, %errorlevel% will return that value and not the exit code. Use (set errorlevel=) to clear the environment variable, allowing access to the true value of errorlevel via the %errorlevel% environment variable.