AutoCAD Commands
Explanations 
Absolute Coordinates
CIRCLE 
DDEDIT
DTEXT
ERASE 
EXPLODE 
EXTEND 
INSERT
LAYER 
LINE 
OFFSET
OOPS
OPEN
Object Snap
(OSNAP)
PLOT 
POLYGON 
QUIT
Relative
Polar Coordinates
Relative Rectangular Coordinates
ROTATE
SAVE
AS...
TRIM 
UNDO
& REDO
ZOOM