Mac OS keyboard shortcuts
⌘C = Copy
⌘V = Paste
⌘X = Cut
⌘A = Select all
⌘Z = Undo
⌘⇧Z = Redo
⌘Tab = Switch programs
⌘` = Next window in current program
⌘W = Close window
⌘N = New window/document
⌘S = Save document
⇧⌘S = Save document as…
⌘O = Open document
⌘P = Print document
⌘Q = Quit program
⌘Spacebar = Open Spotlight
⌘⇧N = Create new Folder
⌘Delete = Delete Files
⌘⇧Delete = Empty Trash
⌘, = Open Preferences
⌘←, ⌘→ = Move to start/end of line
⌘↑, ⌘↓ = Move to top/bottom of document
⌘⇧3 = Capture entire screen
⌘⇧4 = Capture custom area
⌘⇧4 Spacebar = Capture window