grav(1) on Linux
The text e0c6faba1773, as Debian 3.0 (Woody) shipped it. The page shows this text now.
draws a simple orbital simulation
Flags it lists
-
-count -
-decay -
-install -
-mono -
-ncolors -
-no-ecay -
-no-trail -
-root -
-trail -
-visual -
-window