usage: gpsmon [OPTIONS] [server[:port:[device]]]

  --debug DEBUGLEVEL  Set DEBUGLEVEL
  --help              Show this help, then exit
  --list              List known device types, then exit.
  --logfile FILE      Log to LOGFILE
  --nocurses          No curses. Data only.
  --nmea              Force NMEA mode.
  --type TYPE         Set receiver TYPE
  --version           Show version, then exit
  -a                  No curses. Data only.
  -?                  Show this help, then exit
  -D DEBUGLEVEL       Set DEBUGLEVEL
  -h                  Show this help, then exit
  -L                  List known device types, then exit.
  -l FILE             Log to LOGFILE
  -n                  Force NMEA mode.
  -t TYPE             Set receiver TYPE
  -V                  Show version, then exit