You can abbreviate the following commands.
A ARC
C CIRCLE
E ERASE
F FILLET
L LINE
M MOVE
O OFFSET
Z ZOOM
You can abbreviate responses to prompts. Type enough characters to make the selection unique among the options. For example, CIRCLE prompts for 3P/2P/<Center point>; typing 3 is enough to specify 3P.
Defaults are shown in angle brackets (<>). You can choose the default by pressing Enter, or take the default action. For example, POLYGON prompts for Number of sides <4>. Pressing Enter accepts the default of 4. CIRCLE prompts for 3P/2P/<Center point>. Specify the center point at the prompt or with the pointer; it is not necessary to press Enter.