Common command keys.

Here are some of the most simple and useful command keys for the Mac system.

Command + C = Copy
Command + V = Paste
Command + X = Cut
Command + P = Print
Command + Z = Undo
Command + S = Save
Command + Q = Quit
Command + Q + Shift = Log-out
Command + T = Creates a new tab (in web browser)
Command + N = New window


And heres one for fun- Option + Shift + K