in.ftpd(8) on Linux
The text db438b645c75, as Debian 2.1 (Slink), Debian 2.0 (Hamm), Debian 1.3 (Bo) shipped it.
Internet File Transfer Protocol server
Flags it lists
-
-A -
-D -
-M -
-S -
-T -
-d -
-h -
-l -
-t -
-u