6 December 2020
gps2udp 1 The GPSD Project GPSD Documentation
gps2udp feed the take from gpsd to one or more aggregation sites
`gps2udp` --ais --count COUNT --daemonize --debug LVL --help --json --nmea --tpv --udp HOST:PORT -a -c COUNT -d LVL -h -j -n -t -u HOST:PORT -V -V server :port :device

## DESCRIPTION

gps2udp is a tool to connect to gpsd and output the received sentences to one or many UDP host:port destinations. This makes the program useful for feeding AIS information from gpsd to aishub, marinetraffic, shipfinder,...

gps2udp does not require root privileges, and can be run concurrently with other tools connecting to the local gpsd without causing problems.

The output will consist of one or both of NMEA (`-n` option) or JSON (`-j` option) gpsd sentences. The output is sent to one or many destinations host through a UDP network socket (`-u HOST:PORT` options) .

Optionally a server, TCP/IP port number and remote device can be given. If omitted, gps2udp connects to localhost on the default port (2947) and watches all devices opened by gpsd.

gps2udp may be run as a daemon (`-b` option).

gps2udp is designed to run smoothly in background; it reconnects automatically to gpsd whenever it is restarted. For debugging purporses, there is an option to exit gracefully after a given count of packets (`-c` option).

## OPTIONS

`-?`
`-h`
`--help`

  -Print a usage message and exit.

`-a`
`--ais`

  Send only AIS messages.

`-b`
`--daemon`

  Causes gps2udp to run as a daemon.

`-c COUNT`
`--count COUNT`

  Exit after COUNT sentences are sent.

`-d LVL`
`--debug LVL`

  Set debug level to LVL. LVL = 0 prints nothing. LVL =1 prints sent packet on stdout. LVL =2 prints ignored packets.

`-j`
`--json`

  Causes JSON sentences to be output.

`-n`
`--nmea`

  Causes NMEA sentences to be output.

`-t`
`--tpv`

  Only output TPV sentences. Implies --json.

`-u HOST:PORT`
`--udp HOST:PORT`

  UDP destination for output sentenses (up to five destinations).

`-v`
`-V`
`--version`

  Prints the program version, then exit. -v is deprecated December 2020.

## EXAMPLE

With a running gpsd accessible on the network

`gps2udp -d 1 -n -u data.aishub.net:2222` will collect data from localhost:gpsd display them on stdout and send a copy to test aishub in NMEA format.

`gps2udp -a -n -b -u data.aishub.net:2222 -u 5.9.207.224:5321 -u 109.200.19.151:4001 fridu.net:2947` will collect data from a remote gpsd located on fridu.net host, will filter AIS messages and send them to 3 destination (aishub, marinetraffic, shipfinder) in NMEA format, command is running in background mode

## SEE ALSO

gpsd 8 , gps 1 , libgps 3 , libgpsmm 3 , gpsprof 1 , gpsfake 1 , gpsctl 1 , gpscat 1 . gpsmon 1 .

## AUTHOR

Fulup Ar Foll fulup@sinagot.net.