dbus-monitor - debug probe to print message bus messages
dbus-monitor [--system | --session | --address ADDRESS] [--profile | --monitor | --pcap | --binary] [watch expressions]
DBUS-MONITOR(1) User Commands DBUS-MONITOR(1)
NAME
dbus-monitor - debug probe to print message bus messages
SYNOPSIS
dbus-monitor [--system | --session | --address ADDRESS] [--profile |
--monitor | --pcap | --binary] [watch expressions]
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 text 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.
dbus-monitor also has two binary output modes. The binary mode,
selected by --binary, outputs the entire binary message stream (without
the initial authentication handshake). The PCAP mode, selected by
--pcap, adds a PCAP file header to the beginning of the output, and
prepends a PCAP message header to each message; this produces a binary
file that can be read by, for instance, Wireshark.
If no mode 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/
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+---------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+---------------------+
|Availability | system/library/dbus |
+---------------+---------------------+
|Stability | Uncommitted |
+---------------+---------------------+
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from
http://dbus.freedesktop.org/releases/dbus/dbus-1.10.32.tar.gz.
Further information about this software can be found on the open source
community website at http://dbus.freedesktop.org.
D-Bus 1.10.32 06/27/2022 DBUS-MONITOR(1)