Полезное‎ > ‎CMD‎ > ‎

exit

EXIT

Quit the current batch script, quit the current subroutine or quit the command processor (CMD.EXE) optionally setting an errorlevel code.

Syntax
      EXIT [/B] [exitCode]
 
Key
    /B        When used in a batch script, this option will exit 
              only the script (or subroutine) but not CMD.EXE
 
   exitCode   Sets the %ERRORLEVEL% to a numeric number.
              If quitting CMD.EXE, set the process exit code no.

You should never attempt to directly write to the %errorlevel% variable, (i.e. don't try anything like SET errorlevel...) using the EXIT command provides a safe way to alter the value of the built-in errorlevel variable.

Examples

:: Exit if a required file is missing
@echo off
If not exist MyimportantFile.txt Exit /b
Echo The file was found

:: Set the error level to 5
@echo off
call :setError
echo %errorlevel%
goto :eof

:setError
exit /B 5

To make this more flexible you can change the subroutine to set any errorlevel like this:

:setError
exit /B %1

Now you can call the subroutine:   call :setError 6 replacing 6 with whatever value you need the errorlevel to be set to.

Gentlemen you can't fight in here this is the war room." - President Muffley (Dr. Strangelove)

Related:

VERIFY - Provides an alternative method of raising an errorlevel without exiting
KILL - Remove a program from memory
Powershell: Exit - Exit Powershell
Equivalent bash command (Linux): break - Exit from a loop

Comments