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       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 "messagebus" 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  specified,  dbus-
       monitor monitors the session bus.

       dbus-monitor  has  two  different  output  modes,  the  'classic'-style
       monitoring mode and profiling mode. The profiling 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