Drawing linear entities

Commands for drawing linear entities are:

3DPOLY command Draws polylines with x,y,z coordinates.
ARC command Draws arcs.
BOUNDARY command Creates a polyline that forms a boundary around closed areas.
CIRCLE command Draws circles.
DONUT command Draws wide circles from polylines.
ELLIPSE command Draws ellipses and elliptical arcs.
HELIX command Draws 2D spirals or a 3D helices.
LINE command Draws line segments.
MLINE command Draws multilines.
PLINE command Draws connected lines and arcs.
POLYGON command Draws regular polygons out of polylines.
RAY command Draws semi-infinite lines.
RECTANG command Draws rectangles and squares.
REVCLOUD command Draws revision clouds.
SKETCH command Draws sketched (freehand) lines.
SPLINE command Draws open and closed splines in 2D and 3D.
TRACE command Draws wide line segments.
XLINE command Draws infinite lines.