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

6       dbus-send - Send a message to a message bus
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SYNOPSIS

9       dbus-send [--system | --session | --address=ADDRESS] [--dest=NAME]
10                 [--print-reply [=literal]] [--reply-timeout=MSEC]
11                 [--type=TYPE] OBJECT_PATH INTERFACE.MEMBER [CONTENTS...]
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13

DESCRIPTION

15       The dbus-send command is used to send a message to a D-Bus message bus.
16       See http://www.freedesktop.org/software/dbus/ for more information
17       about the big picture.
18
19       There are two well-known message buses: the systemwide message bus
20       (installed on many systems as the "messagebus" service) and the
21       per-user-login-session message bus (started each time a user logs in).
22       The --system and --session options direct dbus-send to send messages to
23       the system or session buses respectively. If neither is specified,
24       dbus-send sends to the session bus.
25
26       Nearly all uses of dbus-send must provide the --dest argument which is
27       the name of a connection on the bus to send the message to. If --dest
28       is omitted, no destination is set.
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30       The object path and the name of the message to send must always be
31       specified. Following arguments, if any, are the message contents
32       (message arguments). These are given as type-specified values and may
33       include containers (arrays, dicts, and variants) as described below.
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35           <contents>   ::= <item> | <container> [ <item> | <container>...]
36           <item>       ::= <type>:<value>
37           <container>  ::= <array> | <dict> | <variant>
38           <array>      ::= array:<type>:<value>[,<value>...]
39           <dict>       ::= dict:<type>:<type>:<key>,<value>[,<key>,<value>...]
40           <variant>    ::= variant:<type>:<value>
41           <type>       ::= string | int16 | uint16 | int32 | uint32 | int64 | uint64 | double | byte | boolean | objpath
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43       D-Bus supports more types than these, but dbus-send currently does not.
44       Also, dbus-send does not permit empty containers or nested containers
45       (e.g. arrays of variants).
46
47       Here is an example invocation:
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49
50             dbus-send --dest=org.freedesktop.ExampleName               \
51                       /org/freedesktop/sample/object/name              \
52                       org.freedesktop.ExampleInterface.ExampleMethod   \
53                       int32:47 string:'hello world' double:65.32       \
54                       array:string:"1st item","next item","last item"  \
55                       dict:string:int32:"one",1,"two",2,"three",3      \
56                       variant:int32:-8                                 \
57                       objpath:/org/freedesktop/sample/object/name
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59
60       Note that the interface is separated from a method or signal name by a
61       dot, though in the actual protocol the interface and the interface
62       member are separate fields.
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OPTIONS

65       The following options are supported:
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67       --dest=NAME
68           Specify the name of the connection to receive the message.
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70       --print-reply
71           Block for a reply to the message sent, and print any reply received
72           in a human-readable form. It also means the message type (--type=)
73           is method_call.
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75       --print-reply=literal
76           Block for a reply to the message sent, and print the body of the
77           reply. If the reply is an object path or a string, it is printed
78           literally, with no punctuation, escape characters etc.
79
80       --reply-timeout=MSEC
81           Wait for a reply for up to MSEC milliseconds. The default is
82           implementation‐defined, typically 25 seconds.
83
84       --system
85           Send to the system message bus.
86
87       --session
88           Send to the session message bus. (This is the default.)
89
90       --address=ADDRESS
91           Send to ADDRESS.
92
93       --type=TYPE
94           Specify method_call or signal (defaults to "signal").
95

AUTHOR

97       dbus-send was written by Philip Blundell.
98

BUGS

100       Please send bug reports to the D-Bus mailing list or bug tracker, see
101       http://www.freedesktop.org/software/dbus/
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105D-Bus 1.12.8                      05/11/2019                      DBUS-SEND(1)
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