glknots(1): generates some twisting 3d knot ...

NAME

-visual visual: Specify which visual to use. Legal values are the name of a visual class, or the id number (decimal or hex) of a specific visual.
-window: Draw on a newly-created window. This is the default.
-root: Draw on the root window.
-delay number: Per-frame delay, in microseconds. Default: 30000 (0.03 seconds.).
-speed number: Larger numbers mean run faster. Default: 1.0.
-segments number: Number of segments in each path. Default 800. Larger numbers make the curves smoother, at the expense of a higher polygon count.
-thickness float: How thick the tubes should be. Default 0.3.
-duration seconds: How long to leave each knot up. Default 8 seconds.
-wander | -no-wander: Whether the cubes should wander around the screen.
-spin [XYZ] | -no-spin: Which axes, if any, to spin around on.
-wireframe | -no-wireframe: Render in wireframe instead of solid.
-fps | -no-fps: Whether to show a frames-per-second display at the bottom of the screen.

DISPLAY: to get the default host and display number.
XENVIRONMENT: to get the name of a resource file that overrides the global resources stored in the RESOURCE_MANAGER property.