1dbus-monitor(1)             General Commands Manual            dbus-monitor(1)
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NAME

6       dbus-monitor - debug probe to print message bus messages
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SYNOPSIS

9       dbus-monitor  [--system  |  --session]  [--profile  | --monitor] [watch
10       expressions]
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DESCRIPTION

14       The dbus-monitor command is used to monitor messages going through a D-
15       Bus  message  bus.   See  http://www.freedesktop.org/software/dbus/ for
16       more information about the big picture.
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19       There are two well-known message  buses:  the  systemwide  message  bus
20       (installed  on  many  systems as the "messagebus" service) and the per-
21       user-login-session message bus (started each time a user logs in).  The
22       --system  and --session options direct dbus-monitor to monitor the sys‐
23       tem or session buses respectively.  If neither is specified, dbus-moni‐
24       tor monitors the session bus.
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27       dbus-monitor  has two different output modes, the 'classic'-style moni‐
28       toring mode and profiling mode. The profiling format is a compact  for‐
29       mat  with  a  single line per message and microsecond-resolution timing
30       information. The --profile and --monitor options select  the  profiling
31       and  monitoring  output  format  respectively. If neither is specified,
32       dbus-monitor uses the monitoring output format.
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35       In order to get dbus-monitor to see the messages you are interested in,
36       you should specify a set of watch expressions as you would expect to be
37       passed to the dbus_bus_add_watch function.
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40       The message bus configuration may keep  dbus-monitor  from  seeing  all
41       messages, especially if you run the monitor as a non-root user.
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OPTIONS

45       --system
46              Monitor the system message bus.
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48       --session
49              Monitor the session message bus.  (This is the default.)
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51       --profile
52              Use the profiling output format.
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54       --monitor
55              Use the monitoring output format.  (This is the default.)
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EXAMPLE

59       Here  is an example of using dbus-monitor to watch for the gnome typing
60       monitor to say things
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62         dbus-monitor "type='signal',sender='org.gnome.TypingMonitor',interface='org.gnome.TypingMonitor'"
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AUTHOR

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

72       Please  send  bug reports to the D-Bus mailing list or bug tracker, see
73       http://www.freedesktop.org/software/dbus/
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77                                                               dbus-monitor(1)
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