Mac OS X keyboard shortcuts - Part 3

Source : support.apple.com

Application and other Mac OS X keyboard commands
Note: Some applications may not support all of the below application key combinations.
Command-SpaceShow or hide the Spotlight search field (if multiple languages are installed, may rotate through enabled script systems)
Control-AMove to beginning of line/paragraph
Control-BMove one character backward
Control-DDelete the character in front of the cursor
Control-EMove to end of line/paragraph
Control-FMove one character forward
Control-HDelete the character behind the cursor
Control-KDelete from the character in front of the cursor to the end of the line/paragraph
Control-LCenter the cursor/selection in the visible area
Control-NMove down one line

Control-O
Insert a new line after the cursor
Control-PMove up one line
Control-TTranspose the character behind the cursor and the character in front of the cursor
Control-VMove down one page
Option-DeleteDelete the word that is left of the cursor, as well as any spaces or punctuation after the word
Option-Command-SpaceShow the Spotlight search results window (if multiple languages are installed, may rotate through keyboard layouts and input methods within a script)
Command-TabMove forward to the next most recently used application in a list of open applications
Shift-Command-TabMove backward through a list of open applications (sorted by recent use)
Shift-TabNavigate through controls in a reverse direction
Control-TabMove focus to the next grouping of controls in a dialog or the next table (when Tab moves to the next cell)
Shift-Control-TabMove focus to the previous grouping of controls
Command-escOpen Front Row (if installed)
Option-EjectEject from secondary optical media drive (if one is installed)
Control-EjectShow shutdown dialog
Option-Command-EjectPut the computer to sleep
Control-Command-EjectQuit all applications (after giving you a chance to save changes to open documents), then restart the computer
Control Option-Command-EjectQuit all applications (after giving you a chance to save changes to open documents), then shut down the computer
fn-DeleteForward Delete (on portable Macs' built-in keyboard)
Control-F1Toggle full keyboard access on or off
Control-F2Move focus to the menu bar
Control-F3Move focus to the Dock
Control-F4Move focus to the active (or next) window
Shift-Control-F4Move focus to the previously active window
Control-F5Move focus to the toolbar.
Control-F6Move focus to the first (or next) panel
Shift-Control-F6Move focus to the previous panel
Control-F7Temporarily override the current keyboard access mode in windows and dialogs
F9Tile or untile all open windows
F10Tile or untile all open windows in the currently active application
F11Hide or show all open windows
F12Hide or display Dashboard
Command-`Activate the next open window in the frontmost application
Shift-Command-`Activate the previous open window in the frontmost application
Option-Command-`Move focus to the window drawer
Command- - (minus)Decrease the size of the selected item
Command-{Left-align a selection
Command-}Right-align a selection
Command-|Center-align a selection
Command-:Display the Spelling window
Command-;Find misspelled words in the document
Command-,Open the front application's preferences window (if it supports this keyboard shortcut)
Option-Control-Command-,Decrease screen contrast
Option-Control-Command-.Increase screen contrast
Command-?Open the application's help in Help Viewer
Option-Command-/Turn font smoothing on or off
Shift-Command-=Increase the size of the selected item
Shift-Command-3Capture the screen to a file
Shift-Control-Command-3Capture the screen to the Clipboard
Shift-Command-4Capture a selection to a file
Shift-Control-Command-4Capture a selection to the Clipboard
Command-AHighlight every item in a document or window, or all characters in a text field
Command-BBoldface the selected text or toggle boldfaced text on and off
Command-CCopy the selected data to the Clipboard
Shift-Command-CDisplay the Colors window
Option-Command-CCopy the style of the selected text
Control-Command-CCopy the formatting settings of the selected item and store on the Clipboard
Option-Command-DShow or hide the Dock
Command-Control-DDisplay the definition of the selected word in the Dictionary application
Command-DSelects the Desktop folder in Open and Save dialogs
Selects "Don't Save" in dialogs that contain a Don't Save button, in Mac OS X v10.6.8 and earlier
Command-DeleteSelects "Don't Save" in dialogs that contain a Don't Save button, in OS X Lion and Mountain Lion
Command-EUse the selection for a find
Command-FOpen a Find window
Option-Command-FMove to the search field control
Command-GFind the next occurrence of the selection
Shift-Command-GFind the previous occurrence of the selection
Command-HHide the windows of the currently running application
Option-Command-HHide the windows of all other running applications
Command-IItalicize the selected text or toggle italic text on or off
Option-Command-IDisplay an inspector window
Command-JScroll to a selection
Command-MMinimize the active window to the Dock
Option-Command-MMinimize all windows of the active application to the Dock
Command-NCreate a new document in the frontmost application
Command-ODisplay a dialog for choosing a document to open in the frontmost application
Command-PDisplay the Print dialog
Shift-Command-PDisplay a dialog for specifying printing parameters (Page Setup)
Command-QQuit the frontmost application
Command-SSave the active document
Shift-Command-SDisplay the Save As dialog
Command-TDisplay the Fonts window
Option-Command-TShow or hide a toolbar
Command-UUnderline the selected text or turn underlining on or off
Command-VPaste the Clipboard contents at the insertion point
Option-Command-VApply the style of one object to the selected object (Paste Style)
Option-Shift-Command-VApply the style of the surrounding text to the inserted object (Paste and Match Style)
Control-Command-VApply formatting settings to the selected object (Paste Ruler Command)
Command-WClose the frontmost window
Shift-Command-WClose a file and its associated windows
Option-Command-WClose all windows in the application without quitting it
Command-XRemove the selection and store in the Clipboard
Command-ZUndo previous command (some applications allow for multiple Undos)
Shift-Command-ZRedo previous command (some applications allow for multiple Redos)
Control-Right ArrowMove focus to another value or cell within a view, such as a table
Control-Left ArrowMove focus to another value or cell within a view, such as a table
Control-Down ArrowMove focus to another value or cell within a view, such as a table
Control-Up ArrowMove focus to another value or cell within a view, such as a table
Command-Right ArrowMove the text insertion point to the end of the current line
Command-Left ArrowMove the text insertion point to the beginning of the current line
Command-Down ArrowMove the text insertion point to the end of the document
Command-Up ArrowMove the text insertion point to the beginning of the document
Option-Right ArrowMove the text insertion point to the end of the next word
Option-Left ArrowMove the text insertion point to the beginning of the previous word
Shift-Command-Right ArrowSelect text between the insertion point and the end of the current line (*)
Shift-Command-Left ArrowSelect text between the insertion point and the beginning of the current line (*)
Shift-Right ArrowExtend text selection one character to the right (*)
Shift-Left ArrowExtend text selection one character to the left (*)
Shift-Command-Up ArrowSelect text between the insertion point and the beginning of the document (*)
Shift-Command-Down ArrowSelect text between the insertion point and the end of the document (*)
Shift-Up ArrowExtend text selection to the line above, to the nearest character boundary at the same horizontal location (*)
Shift-Down ArrowExtend text selection to the line below, to the nearest character boundary at the same horizontal location (*)
Shift-Option-Right ArrowExtend text selection to the end of the current word, then to the end of the following word if pressed again (*)
Shift-Option-Left ArrowExtend text selection to the beginning of the current word, then to the beginning of the following word if pressed again (*)
Shift-Option-Down ArrowExtend text selection to the end of the current paragraph, then to the end of the following paragraph if pressed again (*)
Shift-Option-Up ArrowExtend text selection to the beginning of the current paragraph, then to the beginning of the following paragraph if pressed again (*)
Control-SpaceToggle between the current and previous input sources
Option-Control-SpaceToggle through all enabled input sources
Option-Command-escForce Quit
(*) Note: If no text is selected, the extension begins at the insertion point. If text is selected by dragging, then the extension begins at the selection boundary. Reversing the direction of the selection deselects the appropriate unit.
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