## NAME

busctl - Introspect the bus

## SYNOPSIS

busctl [OPTIONS...] [COMMAND] [NAME...]

## DESCRIPTION

busctl may be used to introspect and monitor the D-Bus bus.

## OPTIONS

The following options are understood:

--address=ADDRESS

Connect to the bus specified by ADDRESS instead of using suitable defaults for either the system or user bus (see --system and --user options).

--show-machine

When showing the list of endpoints, show a column containing the names of containers they belong to. See systemd-machined.service(8).

--unique

When showing the list of endpoints, show only "unique" names (of the form ":number.number").

--acquired

The opposite of --unique (em only "well-known" names will be shown.

--activatable

When showing the list of endpoints, show only endpoints which have actually not been activated yet, but may be started automatically if accessed.

--match=MATCH

When showing messages being exchanged, show only the subset matching MATCH.

--no-legend

Do not print the legend, i.e. the column headers and the footer.

--user

Talk to the service manager of the calling user, rather than the service manager of the system.

--system

Talk to the service manager of the system. This is the implied default.

-H, --host=

Execute the operation remotely. Specify a hostname, or a username and hostname separated by "@", to connect to. The hostname may optionally be suffixed by a container name, separated by ":", which connects directly to a specific container on the specified host. This will use SSH to talk to the remote machine manager instance. Container names may be enumerated with machinectl -H HOST.

-M, --machine=

Execute operation on a local container. Specify a container name to connect to.

-h, --help

Print a short help text and exit.

--version

Print a short version string and exit.

--no-pager

Do not pipe output into a pager.

## COMMANDS

The following commands are understood:

list

Show endpoints attached to the bus. This is the default if no command is specified.

monitor [NAME...]

Dump messages being exchanged. If NAME is specified, show messages to or from this endpoint. Otherwise, show all messages on the bus.

status NAME

Show process information and credentials of a bus endpoint.

help

Show command syntax help.

## SEE ALSO

dbus-daemon(1), m[blue]D-Busm[]s-2u[1]ds+2, m[blue]kdbusm[]s-2u[2]ds+2, sd-bus(3), systemd(1), systemd-bus-proxyd(8), machinectl(1)

## NOTES

1. 4

D-Bus

%http://freedesktop.org/wiki/Software/dbus

2. 4

kdbus

%https://code.google.com/p/d-bus/