This document contains common Mac OS X keyboard shortcuts.

Finder window
Keyboard shortcut	Description
Command-W	Close Window
Option-Command-W	Close all Windows
Command-Right Arrow	Expand folder (list view)
Option-Command-Right Arrow	Expand folder and nested subfolders (list view)
Command-Left Arrow	Collapse Folder (list view)
Option-Command-Up Arrow	Open parent folder and close current window

Menu commands
Keyboard shortcut	Description
Shift-Command-Q	Apple Menu      Log out
Shift-Option-Command-Q	Apple Menu      Log out immediately
Shift-Command-Delete	Finder Menu      Empty Trash
Option-Shift-Command-Delete	Finder Menu      Empty Trash without dialog
Command-H	Finder Menu      Hide Finder
Option-Command-H	Finder Menu      Hide Others
Command-N	File Menu      New Finder window
Shift-Command-N	File Menu      New Folder
Command-O	File Menu      Open
Command-S	File Menu      Save
Shift-Command-S	File Menu      Save as
Command-P	File Menu      Print
Command-W	File Menu      Close Window
Option-Command-W	File Menu      Close all Windows
Command-I	File Menu      Get Info
Option-Command-I	File Menu      Show Attributes Inspector
Command-D	File Menu      Duplicate
Command-L	File Menu      Make Alias
Command-R	File Menu      Show original
Command-T	File Menu      Add to Favorites
Command-Delete	File Menu      Move to Trash
Command-E	File Menu      Eject
Command-F	File Menu      Find
Command-Z	Edit Menu      Undo
Command-X	Edit Menu      Cut
Command-C	Edit Menu      Copy
Command-V	Edit Menu      Paste
Command-A	Edit Menu      Select All
Command-1	View Menu      View as Icons
Command-2	View Menu      View as List
Command-3	View Menu      View as Columns
Command-B	View Menu      Hide Toolbar
Command-J	View Menu      Show View Options
Command - [	Go Menu      Back
Command - ]	Go Menu      Forward
Shift-Command-C	Go Menu      Computer
Shift-Command-H	Go Menu      Home
Shift-Command-I	Go Menu      iDisk
Shift-Command-A	Go Menu      Applications
Shift-Command-F	Go Menu      Favorites
Shift-Command-G	Go Menu      Goto Folder
Command-K	Go Menu      Connect to Server
Command-M	Window Menu      Minimize Window
Option-Command-M	Window Menu      Minimize All Windows
Command-?	Help Menu      Open Mac Help

Universal Access
Keyboard shortcut	Description
Option-Command-* (asterisk)	Turn on Zoom
Option-Command-+ (plus)	Zoom in
Option-Command-- (minus)	Zoom out
Control-Option-Command-* (asterisk)	Switch to White on Black
Control-F1	Turn on Full Keyboard Access When Full Keyboard Access is turned on, you can use the key combinations listed in the table below from the Finder.
Control-F2	Full Keyboard Access      Highlight Menu
Control-F3	Full Keyboard Access      Highlight Dock
Control-F4	Full Keyboard Access      Highlight Window (active) or next window behind it
Control-F5	Full Keyboard Access      Highlight Toolbar
Control-F6	Full Keyboard Access      Highlight Utility window (palette)

The Universal Access preference pane allows you to turn on Mouse Keys. When Mouse Keys is on, you can use the numeric keypad to move the mouse. If your computer doesn't have a numeric keypad, use the Fn (function) key.

Mouse Keys
Keystroke	Description
8	Move Up
2	Move Down
4	Move Left
6	Move Right
1, 3, 7, and 9	Move Diagonally
5	Press Mouse Button
0	Hold Mouse Button
. (period on keypad)	Release Mouse Button (use after pressing 0)

Other Commands
Keystroke	Description
Option-Command-D	Show/Hide Dock
Command-Tab	Switch application
tab	Highlight next item
Command-Up Arrow	Move up one directory
Command-Down Arrow	Move down one directory
Page Up or Control-Up Arrow	Move up one page
Page Down or Control-Down Arrow	Move down one page
Option-Drag	Copy to new location
Option-Command-Drag	Make alias in new location
Command-Drag	Move to new location without copying
Shift-Command-C	Show Colors palette in application
Command-T	Show Font palette in application
Command-Shift-3	Take a picture of the screen
Command-Shift-4	Take a picture of the selection
Command-Shift-3	Take a picture of the screen
Command-Shift-4, then Spacebar	Take a picture of the selected window
Option-Command-esc	Force Quit
Control-Eject	Restart, Sleep, Shutdown dialog box
Control-Command-Eject	Quit all applications and restart
Option-Command-Eject or Option-Command-Power	Sleep
Command-click window toolbar button (upper right corner)	Cycle through available views for the window's toolbar (dependant on the nature of the Finder or application window)