If you want to your Mac book shut Down swiftly just press.
* Command + Option + Control + Eject
Use the keyboard combination of Command + Option + Control + Eject to instantly shut down your Mac. (And we mean instantly — make sure you've saved any open files!) This is a great time saver because it bypasses the shut-down counter that you get when using Apple menu > Shut Down (shown above). You can also put your Mac to sleep by pressing Command + Option + Eject.