bio-rainbow(1) on Linux
The text 7715848cb3b4, as Debian 9 (Stretch) shipped it.
manual page for rainbow 2.0.4 -- <[email protected], [email protected]>
Flags it lists
-
-K -
-L -
-N -
-R -
-a -
-e -
-f -
-k -
-l -
-m -
-r