Quits the CMD.EXE program (command interpreter) or the current batch script. EXIT /B exitCode /B specifies to exit the current ...

Quits the CMD.EXE program (command interpreter) or the current batch script.  EXIT [/B] [exitCode]    /B          specifies to exit the current batch script instead of               CMD.EXE.  If executed from outside a batch script, it               will quit CMD.EXE    exitCode    specifies a numeric number.  if /B is specified, sets               ERRORLEVEL that number.  If quitting CMD.EXE, sets the process               exit code with that number.