Exit from nested batch file

Question

I have 4 batch files, suppose a.bat, b.bat, c.bat and d.bat. Now these batch files are called in such a manner that a.bat calls b.bat, b.bat calls c.call and so on.

If I get any error in any batch file, I want to exit from the entire program by saying an error occurred, and mention which batch file had a problem. My question is, how can I do this?

Here I used exit /b but it only gets out from the current batch file and moves back into batch file from whence it was called:

a.bat

@echo. off
echo. this is batch 'a'
call b.bat

b.bat

@echo. off
echo. this is batch 'b'
call c.bat

c.bat

@echo. off
echo. this is batch 'c'

I get an error in batch 'C' - It should then report an error and exit, but it's moving back into batch 'B' somehow. Any idea on how to exit from a nested batch file?

Answer 1

You can use a syntax error, this stop immediately the batch without closing the command window.

The :HALT functions calls the :__halt function only to supress the error message.

c.bat

@echo off
echo this is batch 'c'
echo An error occurs
call :HALT
exit /b

:HALT
call :__halt 2> nul
exit /b

:__halt
()