fbsetbg(1) on Linux
The text a26dabd4fe1b, as Debian 6.0 (Squeeze) shipped it.
set a background/wallpaper
Flags it lists
-
-A -
-B -
-C -
-F -
-R -
-T -
-U -
-a -
-b -
-c -
-f -
-h -
-i -
-l -
-p -
-r -
-t -
-u