key(1) on Linux
The text f0b58568c50c, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch) shipped it. The page shows this text now.
alternative for S/KEY's "key" command.
Flags it lists
-
-f -
-n