statserial(1) on Linux
The text 622a7308fa69, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster) shipped it. The page shows this text now.
display serial port modem status lines
Flags it lists
-
-d -
-n -
-x