gnutalk(1) on Linux
The text a1a90b392272, as Debian 4.0 (Etch), Debian 3.1 (Sarge) shipped it.
GNU talk client
Flags it lists
-
--auto-answer -
--curses -
--defaultroute -
--help -
--no-init-file -
--reply -
--subprocess -
--test -
--verbose -
--version -
-? -
-a -
-c -
-d -
-h -
-q -
-r -
-s -
-t -
-v