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



NAME
       dbus-monitor - debug probe to print message bus messages

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


DESCRIPTION
       The  dbus-monitor  command  is  used  to  monitor  messages  going through a D-Bus message bus.  See http://www.freedesk-
       top.org/software/dbus/ 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"  ser-
       vice)  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.


OPTIONS
       --system
              Monitor the system message bus.

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

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

       --profile
              Use the profiling output format.

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


EXAMPLE
       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'"



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


BUGS
       Please send bug reports to the D-Bus mailing list or bug tracker, see http://www.freedesktop.org/software/dbus/



                                                                                                                 dbus-monitor(1)