Exiting operating system`s command line application [closed]

When I call the exit directive from a script file in Android Terminal Emulator or Debian Terminal, it does not terminate the command line GUI. It is counterpart of exit /B directive of Windows OS. I am looking for Windows exit command’s counterpart which belongs to Linux based systems as standalone (parameter-free) exit directive in Windows script file terminates not only execution of the script file but also command line window.