NAME

       xgps - X client for gpsd

SYNOPSIS

       xgps [OPTIONS] [service[:port[:device]]]

       xgps -h

       xgps -V

DESCRIPTION

       xgps is a simple sample client for gpsd with an X interface. It displays current GNSS
       position/time/velocity information and (for GNSS receivers that support the feature) the
       locations of accessible satellites.

       In the sky view, satellites are color-coded to indicate quality of signal, consult the
       data display to the left for exact figures in dB. Diamond-shaped icons indicate GLONASS
       satellites, squares are used for SBAS (e.g. WAAS, EGNOS), circles indicate GPS, and down-,
       up-, right-, and left-pointing triangles, respectively, indicate Galileo, BeiDou, QZSS,
       and other systems' satellites (e.g. IMES, IRNSS, as well as unknown systems). Filled icons
       were used in the current fix, outline icons were not. Hovering over a symbol with the
       mouse pointer will temporarily display a small popup window with the satellite details
       from the Satellite List pane.

       xgps will run fine as a normal user, and fine as root. Running xgps under sudo will cause
       some loss of functionality.

OPTIONS

       -?, -h, --help
           Causes the client to emit a summary of its options and then exit.

       -device DEVICE
           The device on the host to connect to. The default is empty (any).

       -D LVL, --debug LVL
           Sets the debug level, it is primarily for use by GPSD developers. It enables various
           progress messages to standard error.

       --host HOST
           The host (server) to connect to. The default is localhost.

       -l FMT, --llfmt FMT
           Set the format of latitude and longitude reports. The value 'd' produces decimal
           degrees and is the default. The value 'm' produces degrees and decimal minutes. The
           value 's' produces degrees, minutes, and decimal seconds.

       -p PORT, --port PORT
           The port to connect to. The default is 2947.

       -r DEG, --rotate DEG
           Accepts an argument in degrees, to rotate the skyview counterclockwise.

       -V, --version
           This option causes each client to dump the package version and exit.

ARGUMENTS

       By default, clients collect data from the local gpsd daemon running on localhost, using
       the default GPSD port 2947. The optional argument to any client may override this
       behavior: [server[:port[:device]]]

       For further explanation, and examples, see the ARGUMENTS section in the gps(1) man page

ENVIRONMENT

       The XGPSOPTS> environment variable may be set to pass commonly used command line options
       to xgps. This is often used to set the -u option for locale specific units. XGPSOPTS is
       processed before the CLI options.

       xgps also looks at other variables in the environment to figure out the units for display
       — imperial, nautical, or metric. Here are the variables and values checked:

               GPSD_UNITS one of:
                         i          = miles/feet
                         imperial   = miles/feet
                         n          = knots/feet
                         nautical   = knots/feet
                         m          = km/meters
                         metric     = km/meters
               LC_MEASUREMENT
                         en_US      = miles/feet
                         C          = miles/feet
                         POSIX      = miles/feet
                         [other]    = km/meters
               LANG
                         en_US      = miles/feet
                         C          = miles/feet
                         POSIX      = miles/feet
                         [other]    = km/meters

       These preferences may be overridden by the -u, or --units option.

       The -u option can be used to set the system units for display; follow the keyword with 'i'
       for 'imperial' for American units (International Feet in altitude and error estimates,
       miles per hour in speeds), 'n' for 'nautical' (feet in altitude and error estimates, knots
       in speed) or 'm' for 'metric' (meters in altitude and error estimates, kilometers per hour
       in speeds).

       Note: The USA Survey Foot is not supported.

       The environment variable GPSD_UNITS is checked if no unit system is specified on the
       command line or in XPGSOPTS it may be set to 'i'. 'imperial', 'm', 'metric', or 'n',
       'nautical'.

       LC_MEASUREMENT and then LANG are checked if no unit system has been specified on the
       command line, in XPGSOPTS or in GPSD_UNITS. If the value is 'C', 'POSIX', or begins with
       'en_US' the unit system is set to imperial. The default if no system has been selected
       defaults to metric.

RETURN VALUES

       0
           on success.

       1
           on failure

SEE ALSO

       gpsd(8), gps(1), xgpsspeed(1)

RESOURCES

       Project web site: https://gpsd.io/

COPYING

       This file is Copyright 2013 by the GPSD project
       SPDX-License-Identifier: BSD-2-clause

AUTHORS

       Remco Treffcorn

       Derrick Brashear

       Russ Nelson

       Eric S. Raymond