gnuais(1) on Linux
The text a1ae13d80b69, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch) shipped it. The page shows this text now.
GNU Automatic Identification System receiver
Flags it lists
-
-c -
-e -
-f -
-h -
-l -
-n -
-o -
-r -
-s