Four tips for the Command key in OS X
One of the defining features of the Mac platform is the Command key, which originated from the Open Apple key on earlier Apple computer systems and joins the Shift, Control, Option, and Fn keys as modifier options for keyboard shortcuts in OS X.
The Command key is the primary modifier key for the Mac platform and is used to perform basic editing and application management commands such as quitting, printing, and copying and pasting, but in addition it can be used in combinations to force a hardware reset and to boot to special modes such as the OS X Lion … Read more