1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
|
<?xml version='1.0'?> <!--*-nxml-*-->
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
<!--
This file is part of systemd.
Copyright 2014 Zbigniew Jędrzejewski-Szmek
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
-->
<refentry id="busctl"
xmlns:xi="http://www.w3.org/2001/XInclude">
<refentryinfo>
<title>busctl</title>
<productname>systemd</productname>
<authorgroup>
<author>
<contrib>A monkey with a typewriter</contrib>
<firstname>Zbigniew</firstname>
<surname>Jędrzejewski-Szmek</surname>
<email>zbyszek@in.waw.pl</email>
</author>
</authorgroup>
</refentryinfo>
<refmeta>
<refentrytitle>busctl</refentrytitle>
<manvolnum>1</manvolnum>
</refmeta>
<refnamediv>
<refname>busctl</refname>
<refpurpose>Introspect the bus</refpurpose>
</refnamediv>
<refsynopsisdiv>
<cmdsynopsis>
<command>busctl</command>
<arg choice="opt" rep="repeat">OPTIONS</arg>
<arg choice="opt">COMMAND</arg>
<arg choice="opt" rep="repeat"><replaceable>NAME</replaceable></arg>
</cmdsynopsis>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para><command>busctl</command> may be used to
introspect and monitor the D-Bus bus.</para>
</refsect1>
<refsect1>
<title>Options</title>
<para>The following options are understood:</para>
<variablelist>
<varlistentry>
<term><option>--address=<replaceable>ADDRESS</replaceable></option></term>
<listitem><para>Connect to the bus specified by
<replaceable>ADDRESS</replaceable> instead of using suitable
defaults for either the system or user bus (see
<option>--system</option> and <option>--user</option>
options).</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--show-machine</option></term>
<listitem><para>When showing the list of endpoints, show a
column containing the names of containers they belong to.
See
<citerefentry><refentrytitle>systemd-machined.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--unique</option></term>
<listitem><para>When showing the list of endpoints, show
only "unique" names (of the form
<literal>:<replaceable>number</replaceable>.<replaceable>number</replaceable></literal>).
</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--acquired</option></term>
<listitem><para>The opposite of <option>--unique</option> —
only "well-known" names will be shown.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--activatable</option></term>
<listitem><para>When showing the list of endpoints, show
only endpoints which have actually not been activated yet,
but may be started automatically if accessed.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--match=<replaceable>MATCH</replaceable></option></term>
<listitem><para>When showing messages being exchanged, show only the
subset matching <replaceable>MATCH</replaceable>.</para></listitem>
<!-- TODO: link to sd_bus_add_match when it is written? -->
</varlistentry>
<varlistentry>
<term><option>--no-legend</option></term>
<listitem>
<para>Do not print the legend,
i.e. the column headers and the
footer.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--size=</option></term>
<listitem>
<para>When used with the <command>capture</command> command
specifies the maximum bus message size to capture
("snaplen"). Defaults to 4096 bytes.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--list</option></term>
<listitem>
<para>When used with the <command>tree</command> command shows a
flat list of object paths instead of a tree.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--quiet</option></term>
<listitem>
<para>When used with the <command>call</command> command suppresses
display of the response message.</para>
</listitem>
</varlistentry>
<xi:include href="user-system-options.xml" xpointer="user" />
<xi:include href="user-system-options.xml" xpointer="system" />
<xi:include href="user-system-options.xml" xpointer="host" />
<xi:include href="user-system-options.xml" xpointer="machine" />
<xi:include href="standard-options.xml" xpointer="help" />
<xi:include href="standard-options.xml" xpointer="version" />
<xi:include href="standard-options.xml" xpointer="no-pager" />
</variablelist>
</refsect1>
<refsect1>
<title>Commands</title>
<para>The following commands are understood:</para>
<variablelist>
<varlistentry>
<term><command>list</command></term>
<listitem><para>Show service names on the bus. This is the
default if no command is specified.</para></listitem>
</varlistentry>
<varlistentry>
<term><command>tree</command> <arg choice="opt" rep="repeat"><replaceable>SERVICE</replaceable></arg></term>
<listitem><para>Shows an object tree of one or more
services. If <replaceable>SERVICE</replaceable> is specified,
show object tree of the specified services only. Otherwise,
show all object trees of all services on the bus that acquired
at least one well-known name.</para></listitem>
</varlistentry>
<varlistentry>
<term><command>monitor</command> <arg choice="opt" rep="repeat"><replaceable>SERVICE</replaceable></arg></term>
<listitem><para>Dump messages being exchanged. If
<replaceable>SERVICE</replaceable> is specified, show messages
to or from this endpoint. Otherwise, show all messages on the
bus.</para></listitem>
</varlistentry>
<varlistentry>
<term><command>capture</command> <arg choice="opt" rep="repeat"><replaceable>SERVICE</replaceable></arg></term>
<listitem><para>Similar to <command>monitor</command> but
writes the output in pcap format (for details see the <ulink
url="http://wiki.wireshark.org/Development/LibpcapFileFormat">Libpcap
File Format</ulink> description. Make sure to redirect the
output to STDOUT to a file. Tools like
<citerefentry><refentrytitle>wireshark</refentrytitle><manvolnum>1</manvolnum></citerefentry>
may be used to dissect and view the generated
files.</para></listitem>
</varlistentry>
<varlistentry>
<term><command>status</command> <arg choice="plain"><replaceable>SERVICE</replaceable></arg></term>
<listitem><para>Show process information and credentials of a
bus service.</para></listitem>
</varlistentry>
<varlistentry>
<term><command>call</command> <arg choice="plain"><replaceable>SERVICE</replaceable></arg> <arg choice="plain"><replaceable>OBJECT</replaceable></arg> <arg choice="plain"><replaceable>INTERFACE</replaceable></arg> <arg choice="plain"><replaceable>METHOD</replaceable></arg> <arg choice="opt"><replaceable>SIGNATURE</replaceable> <arg choice="opt" rep="repeat"><replaceable>PARAMETERS</replaceable></arg></arg></term>
<listitem><para>Invoke a method and show the response.</para></listitem>
</varlistentry>
<varlistentry>
<term><command>help</command></term>
<listitem><para>Show command syntax help.</para></listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>See Also</title>
<para>
<citerefentry><refentrytitle>dbus-daemon</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<ulink url="http://freedesktop.org/wiki/Software/dbus">D-Bus</ulink>,
<ulink url="https://code.google.com/p/d-bus/">kdbus</ulink>,
<citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-bus-proxyd</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>machinectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>wireshark</refentrytitle><manvolnum>1</manvolnum></citerefentry>
</para>
</refsect1>
</refentry>
|
