Windows XP Pocket Reference

Name

exit

Synopsis

Typing exit has the same effect as closing the command prompt window with the [x] button. exit accepts the following options:

exit [/b] [exitcode]

Option	Description
/b	If exit is used from within a batch file, it will close the current command prompt window. Specify /b to simply exit the batch file but leave cmd.exe running.
exitcode	Specifies a numerical "exit code" number that is passed to the application or process that launched the command prompt or started the batch file.