Quit CMD.EXE or the current batch script.

The options below are only available in Windows XP (or later).

Syntax
       EXIT [/B] [exitCode]

Key
    /B        When used in a batch script it will exit the 
              current batch script instead of CMD.EXE.  
              If executed from outside a batch script, it
              will still quit CMD.EXE

    exitCode  A numeric number.  if /B is specified, sets
              ERRORLEVEL that number.  If quitting CMD.EXE, sets the process
              exit code with that number.