Mac OS X keyboard shortcuts

Apple has a page listing dozens of standard keyboard shortcuts you can use at start-up, with the Finder, and with many applications. If you’re a keyboard person, rather than a mouse person, you may find some shortcuts here that you didn’t know. At a minimum, it’s worth bookmarking this page to have a list of keys to press at startup, if you need to change boot disks, boot in Safe mode or boot from an optical disc (if your Mac still supports that).

Some of the most common keyboard shortcuts are:

Action Shortcut
Open a new window or document Command(⌘)-N
Copy the selected item Command (⌘)-C
Cut (delete) the selected item Command (⌘)-X
Paste an item Command (⌘)-V
Open the selected file, folder, or app Command (⌘)-O
Quit an app Command (⌘)-Q
Move the selected item to the Trash Command (⌘)-Delete
Find text or other items Command (⌘)-F
Minimize a window into the Dock Command (⌘)-M
Open a shortcut (contextual) menu for an item Control-click the item
Switch to the previous app Command (⌘)-Tab
Copy an item Option-drag the item
Open your home folder Shift-Command (⌘)-H
Close all open windows Option-click the close button

Dan Rodney has also composed a friendlier list here