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busctl — Introspect and monitor the D-Bus bus. More information: <https://www.freedesktop.org/software/system

Submitted by: @import:tldr-pages·Mar 2, 2026·

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thebuscommandmonitorandcliintrospectbusctl

linux

Problem

How to use the busctl command: Introspect and monitor the D-Bus bus. More information: <https://www.freedesktop.org/software/systemd/man/latest/busctl.html>.

Solution

busctl — Introspect and monitor the D-Bus bus. More information: <https://www.freedesktop.org/software/systemd/man/latest/busctl.html>.

Show all peers on the bus by their service names:

busctl

Show process information and credentials of a bus service, a process, or the owner of the bus (if no parameter is specified):

busctl status {{service|pid}}

Dump messages being exchanged. If no service is specified, show all messages on the bus:

busctl monitor {{service1 service2 ...}}

Show an object tree of one or more services (or all services if no service is specified):

busctl tree {{service1 service2 ...}}

Show interfaces, methods, properties, and signals of the specified object on the specified service:

busctl introspect {{service}} {{path/to/object}}

Retrieve the current value of one or more object properties:

busctl get-property {{service}} {{path/to/object}} {{interface_name}} {{property_name}}

Invoke a method and show the response:

busctl call {{service}} {{path/to/object}} {{interface_name}} {{method_name}}

Code Snippets

Show all peers on the bus by their service names

busctl

Show process information and credentials of a bus service, a process, or the owner of the bus (if no parameter is specified)

busctl status {{service|pid}}

Dump messages being exchanged. If no service is specified, show all messages on the bus

busctl monitor {{service1 service2 ...}}

Show an object tree of one or more services (or all services if no service is specified)

busctl tree {{service1 service2 ...}}

Show interfaces, methods, properties, and signals of the specified object on the specified service

busctl introspect {{service}} {{path/to/object}}

Context

tldr-pages: linux/busctl

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