08-15-2008
Linux used to have something like FAM which would alert you when a file was altered. This is being replaced by other mechanisms which are slightly less platform-specific, but there is nothing which is stable and standard just yet. If yoiu have a dbus system, I think that includes this facility, but the name escapes me. There are discussions on this site about such systems so searching along the lines of fam and dbus might help you find stuff you like.
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LEARN ABOUT OPENSOLARIS
dbus-monitor
dbus-monitor(1) User Commands dbus-monitor(1)
NAME
dbus-monitor - debug probe to print message bus messages
SYNOPSIS
dbus-monitor [--system | --session] [--profile | --monitor] [watch_expressions]
DESCRIPTION
The dbus-monitor command is used to monitor messages going through a D-Bus message bus.
There are two standard message buses:
o systemwide message bus - Disabled and not supported on Solaris, but installed on many systems as the "messagebus" init service.
o per-user-login-session message bus - Enabled and supported on Solaris, and 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 for-
mat 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.
The message bus configuration may keep dbus-monitor from seeing all messages, especially if you run the monitor as a non-root user.
See http://www.freedesktop.org/software/dbus/ for more information.
OPTIONS
The following options are supported:
--monitor
Use the monitoring output format (this is the default).
--profile
Use the profiling output format.
--session
Monitor the session message bus (this is the default).
--system
Monitor the system message bus. The system bus is disabled and unsupported on Solaris.
OPERANDS
The following operands are supported:
watch_expressions In order to display 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_watch function.
EXIT STATUS
The following exit values are returned:
0 Application exited successfully
>0 Application exited with failure
FILES
The following files are used by this application:
/usr/bin/dbus-monitor Executable for dbus-monitor
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWdbus |
+-----------------------------+-----------------------------+
|Interface stability |Volatile |
+-----------------------------+-----------------------------+
SEE ALSO
dbus-cleanup-sockets(1), dbus-daemon(1), dbus-launch(1), dbus-send(1), dbus-uuidgen(1), libdbus-glib-1(3), attributes(5)
NOTES
For authorship information refer to http://www.freedesktop.org/software/dbus/doc/AUTHORS. Updated by Brian Cameron, Sun Microsystems Inc.,
2007.
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 http://www.freedesktop.org/software/dbus/
SunOS 5.11 19 Nov 2007 dbus-monitor(1)