gpsmon(1) on Linux
The text bdb755ae14ee, as Debian 13 (Trixie) shipped it.
real-time GPS packet monitor and control utility
Flags it lists
-
--debug -
--help -
--list -
--logfile -
--nmea -
--nocurses -
--type -
-? -
-L -
-a -
-d -
-h -
-l -
-n -
-t