What Is the Command Key?

The Command key is a key on a Mac keyboard that you hold down while you press another key, so that the two together do a task. Holding Command and pressing C copies what is highlighted, and holding Command and pressing Z undoes your last change. Pressing Command on its own does nothing that you can see.

What it looks like

There is one Command key on each side of the space bar, the long key at the bottom of the keyboard. Each is marked command and ⌘, a square with a loop at each corner. Both do the same thing.

On Windows and on a Mac

Windows keyboards have no Command key. Many tasks that use Command on a Mac use the Ctrl key on a Windows computer, such as Ctrl and C to copy.