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dbus-monitor(1)                                                dbus-monitor(1)

       dbus-monitor - debug probe to print message bus messages

       dbus-monitor [--system | --session | --address ADDRESS] [--profile | --monitor] [watch expressions]

       The   dbus-monitor   command   is   used   to  monitor  messages  going  through  a  D-Bus  message  bus.   See for more information about the big picture.

       There are two well-known message buses: the systemwide message bus (installed on many systems as the  "message-
       bus"  service) and the per-user-login-session message bus (started each time a user logs in).  The --system and
       --session options direct dbus-monitor to monitor the system or session buses respectively.  If neither is spec-
       ified, dbus-monitor monitors the session bus.

       dbus-monitor  has  two different output modes, the 'classic'-style monitoring mode and profiling mode. The pro-
       filing format is a compact format with a single line per message and microsecond-resolution timing information.
       The  --profile and --monitor options select the profiling and monitoring output format respectively. If neither
       is specified, dbus-monitor uses the monitoring output format.

       In order to get dbus-monitor to see the messages you are interested in, you  should  specify  a  set  of  watch
       expressions as you would expect to be passed to the dbus_bus_add_match function.

       The message bus configuration may keep dbus-monitor from seeing all messages, especially if you run the monitor
       as a non-root user.

              Monitor the system message bus.

              Monitor the session message bus.  (This is the default.)

       --address ADDRESS
              Monitor an arbitrary message bus given at ADDRESS.

              Use the profiling output format.

              Use the monitoring output format.  (This is the default.)

       Here is an example of using dbus-monitor to watch for the gnome typing monitor to say things

         dbus-monitor "type='signal',sender='org.gnome.TypingMonitor',interface='org.gnome.TypingMonitor'"

       dbus-monitor was written by Philip Blundell.  The profiling output mode was added by Olli Salli.

       Please send bug reports to the D-Bus mailing list or bug tracker, see