Linux Commands Examples

A great documentation place for Linux commands

dbus-monitor

debug probe to print message bus messages

Synopsis

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


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examples

1
source 
            

  DBUS_INTERFACE="org.freedesktop.Notifications"






  dbus-monitor --profile | while
  read -r line; do




  echo "${line}"




  done
0
source 
            

  LOG=~/.scripts/daemons/locklog.txt






  dbus-monitor \




  --session "type='signal',interface='org.gnome.ScreenSaver',member='ActiveChanged'"
  \
0
source 
            

  echo "Iniciando
  monitoramento de lock/unlock da tela"




  dbus-monitor --session "type='signal',interface='org.gnome.ScreenSaver'" |
  ( while
  true; do
  read X; if
  echo $X | grep
  "boolean true" &> /dev/null;
  then echo
  "$(date "+%Y-%m-%d %k:%M"): Autolock: Trabalhando" >>
  ~/.gtimelog/timelog.txt; elif echo $X | grep "boolean false" &> /dev/null; then echo "$(date "+%Y-%m-%d %k:%M"):
  Autolock: Fora da mesa **" >>
  ~/.gtimelog/timelog.txt; fi done
  ) &




  ps aux | grep -v -e grep -e $$ | grep
  --color=auto -e dbus-monitor -e
  $(basename $0)
0
source 
            

  LOG "Screensaver Monitoring Started ($0)"




  dbus-monitor "$dbuswatch"
  2>> $log.err | while read line




  do




  case $line in




  boolean*)




  done




  LOG "dbus-monitor exitted (user logged
  out?)"

description

The dbus-monitor command is used to monitor messages going through a D-Bus message bus. See http://www.freedesktop.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" 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.

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’"


bugs

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


author

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

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