Option-Command-D: Show or hide the Dock.Shift-Command-U: Open the Utilities folder.Control-Shift-Command-T: Add selected Finder item to the Dock (OS X Mavericks or later).Shift-Command-T: Show or hide the tab bar in Finder windows.Shift-Command-R: Open the AirDrop window.Shift-Command-P: Show or hide the Preview pane in Finder windows.Shift-Command-O: Open the Documents folder.Option-Command-L: Open the Downloads folder.Shift-Command-K: Open the Network window.
(3) In Software Update preferences, check for software updates again. (2) In some apps, such as Calendar or Safari, refresh or reload the page. Command-R: (1) When an alias is selected in the Finder: show the original file for the selected alias.Command-I: Show the Get Info window for a selected file.Command-F: Start a Spotlight search in the Finder window.Command-E: Eject the selected disk or volume.Command-D: Duplicate the selected files.To log out immediately without confirming, press Option-Shift-Command-Q. Shift-Command-Q: Log out of your macOS user account.Control-Command-Q: Immediately lock your screen.If any open documents have unsaved changes, you will be asked whether you want to save them. Control–Option–Command–Power button* or Control–Option–Command–Media Eject : Quit all apps, then shut down your Mac.Control–Command–Media Eject : Quit all apps, then restart your Mac.
Control–Command–Power button:* Force your Mac to restart, without prompting to save any open and unsaved documents.Control–Power button* or Control–Media Eject : Display a dialog asking whether you want to restart, sleep, or shut down.
Control-Command-F: Use the app in full screen, if supported by the app.Control–Command–Space bar: Show the Character Viewer, from which you can choose emoji and other symbols.
Learn how to change a conflicting keyboard shortcut.) (If you use multiple input sources to type in different languages, these shortcuts change input sources instead of showing Spotlight. To perform a Spotlight search from a Finder window, press Command–Option–Space bar.
To close all windows of the app, press Option-Command-W.