swirc(1) on Linux
The text 13ee7bea7ce3, as Debian 12 (Bookworm) shipped it.
curses icb and irc client
Flags it lists
-
-4 -
-6 -
-? -
-C -
-P -
-R -
-c -
-d -
-i -
-j -
-n -
-p -
-u -
-v -
-x