DBUS-SEND(1)                      User Commands                     DBUS-SEND(1)

       dbus-send - Send a message to a message bus

       dbus-send [--system | --session | --bus=ADDRESS | --peer=ADDRESS]
                 [--dest=NAME] [--print-reply [=literal]] [--reply-timeout=MSEC]

       The dbus-send command is used to send a message to 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-send to send messages to
       the system or session buses respectively. If neither is specified,
       dbus-send sends to the session bus.

       Nearly all uses of dbus-send must provide the --dest argument which is
       the name of a connection on the bus to send the message to. If --dest is
       omitted, no destination is set.

       The object path and the name of the message to send must always be
       specified. Following arguments, if any, are the message contents (message
       arguments). These are given as type-specified values and may include
       containers (arrays, dicts, and variants) as described below.

           <contents>   ::= <item> | <container> [ <item> | <container>...]
           <item>       ::= <type>:<value>
           <container>  ::= <array> | <dict> | <variant>
           <array>      ::= array:<type>:<value>[,<value>...]
           <dict>       ::= dict:<type>:<type>:<key>,<value>[,<key>,<value>...]
           <variant>    ::= variant:<type>:<value>
           <type>       ::= string | int16 | uint16 | int32 | uint32 | int64 | uint64 | double | byte | boolean | objpath

       D-Bus supports more types than these, but dbus-send currently does not.
       Also, dbus-send does not permit empty containers or nested containers
       (e.g. arrays of variants).

       Here is an example invocation:

             dbus-send --dest=org.freedesktop.ExampleName               \
                       /org/freedesktop/sample/object/name              \
                       org.freedesktop.ExampleInterface.ExampleMethod   \
                       int32:47 string:'hello world' double:65.32       \
                       array:string:"1st item","next item","last item"  \
                       dict:string:int32:"one",1,"two",2,"three",3      \
                       variant:int32:-8                                 \

       Note that the interface is separated from a method or signal name by a
       dot, though in the actual protocol the interface and the interface member
       are separate fields.

       The following options are supported:

           Specify the name of the connection to receive the message.

           Block for a reply to the message sent, and print any reply received
           in a human-readable form. It also means the message type (--type=) is

           Block for a reply to the message sent, and print the body of the
           reply. If the reply is an object path or a string, it is printed
           literally, with no punctuation, escape characters etc.

           Wait for a reply for up to MSEC milliseconds. The default is
           implementation‚Äźdefined, typically 25 seconds.

           Send to the system message bus.

           Send to the session message bus. (This is the default.)

           Register on a message bus at ADDRESS, typically a dbus-daemon.

           Send to a non-message-bus D-Bus server at ADDRESS. In this case
           dbus-send will not call the Hello method.

           Specify method_call or signal (defaults to "signal").

       dbus-send was written by Philip Blundell.

       Please send bug reports to the D-Bus mailing list or bug tracker, see

D-Bus 1.12.20                      07/02/2020                       DBUS-SEND(1)