Control-Command-Space bar: Show the Character Viewer, from which you can choose emoji and other symbols.

Find out how to change a conflicting keyboard shortcut.) (If you use multiple input sources to type in different languages, these shortcuts will change input sources instead of showing Spotlight. To perform a Spotlight search from a Finder window, press Command–Option–Space bar.

Command-Space bar: Show or hide the Spotlight search field.

To close all windows of the app, press Option-Command-W.

Command-O: Open the selected item or open a dialogue to select a file to open.

To minimise all windows of the front app, press Option-Command-M.

Command-M: Minimise the front window to the Dock.

To view the front app but hide all other apps, press Option-Command-H.

Command-H: Hide the windows of the front app.

To find the previous occurrence, press Shift-Command-G.

Command-G: Find Again: Find the next occurrence of the item previously found.

Command-F: Find items in a document or open a Find window.

In some apps, you can undo and redo multiple commands.

You can then press Shift-Command-Z to Redo, reversing the undo command. Command-V: Paste the contents of the Clipboard into the current document or app.

Command-C: Copy the selected item to the Clipboard.

Command-X: Cut the selected item and copy it to the Clipboard.

Shotcut for beginners