josm - Java OpenStreetMap Editor

       JOSM was originally designed and coded by Immanuel Scholz, and is now  maintained  by  the  OpenStreetMap
       community.

       The  current  JOSM maintainer is Dirk Stöcker.  A lot of administration work is done by Paul Hartmann and
       Vincent Privat.

       Major code contributions from (in alphabetical order):

       Stefan Breunig David Earl Gabriel Ebner Dave Hansen Paul Hartmann Karl Guggisberg Matthias Julius  Alexei
       Kasatkin  Jiri  Klement  Ulf  Lamping Simon Legner Raphael Mack Upliner Mikhalych Vincent Privat Frederik
       Ramm Dirk Stöcker

       Many minor contributions and patches by others; see SVN history at https://josm.openstreetmap.de/svn/ for
       details. Use "josm-dev AT openstreetmap.org" to contact still active authors.  The logo has been designed
       by Ilya Palikov.

       This manual page was initially written by Andreas Putzo <andreas@putzo.net>, for the Debian project  (but
       may be used by others).

                                                 March 22, 2021                                          JOSM(1)

JOSM is an editor for OpenStreetMap written in Java 8.

       OpenStreetMap  is  a project aimed squarely at creating and providing free geographic data such as street
       maps to anyone who wants them. It allows you to view, edit and use geographical data in  a  collaborative
       way from anywhere on earth.  The project was started because most maps you think of as free actually have
       legal or technical restrictions on their use, holding back people from using them in creative, productive
       or unexpected ways.

       JAVA_HOME
              Specify an alternate Java environment.

       JAVA_OPTS
              Specify Java options.  For example, to use a  HTTP  proxy  server  with  this  program,  set  this
              environment  variable  to something like JAVA_OPTS="-Dhttp.proxyHost=yourProxyURL" before starting
              josm.

       JOSM files are saved according to the XDG Base Directory Specification:

       $HOME/.config/JOSM
              Preferences

       $HOME/.local/share/JOSM
              User data

       $HOME/.cache/JOSM
              Cache

       If the directory $HOME/.josm exists, all files are stored there.

       The  following  options  can  be set by using Java system properties (i.e. -Dkey=value passed to java, or
       specified inside JAVA_OPTS).

       josm.pref=<path>
              Set the JOSM preferences directory.

       josm.userdata=<path>
              Set the JOSM user data directory.

       josm.cache=<path>
              Set the JOSM cache directory.

       josm.home=<homedir>
              Relocate all 3 directories to homedir. Cache directory will be in <homedir>/cache.

       josm.dir.name=<JOSM>
              Change the JOSM directory name.

       josm - Java OpenStreetMap Editor

-h,-?,--help
              Show help

       --geometry=<width>x<height>(+|-)x(+|-)y
              Standard X geometry argument

       [--download=]minlat,minlon,maxlat,maxlon
              Download the bounding box

       [--download=]<url>
              Download the location at the url (with lat=x&lon=y&zoom=z)

       [--download=]<filename>
              Open file (any file type that can be opened with File/Open)

       --downloadgps=minlat,minlon,maxlat,maxlon
              Download the bounding box as raw gps

       --selection=<searchstring>
              Select with the given search

       --[no-]maximize
              Do [not] launch in maximized mode

       --reset-preferences
              Reset the preferences to the default

       --load-preferences=<url-to-xml>
              Change preferences according to the XML file

       --set=<key>=<value>
              Set preference key to value

       --language=<language>
              Set the language

       --version
              Display the JOSM version

       --status-report
              Show status report with useful information that can be attached to bugs

       --debug
              Print debugging messages to console

       --offline=<OSM_API|JOSM_WEBSITE|CACHE_UPDATES|CERTIFICATES|ALL>
              Disable access to the given resource(s), separated by comma

josm