1dpkg-query(1)                     dpkg suite                     dpkg-query(1)
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NAME

6       dpkg-query - a tool to query the dpkg database
7

SYNOPSIS

9       dpkg-query [option...] command
10

DESCRIPTION

12       dpkg-query is a tool to show information about packages listed in the
13       dpkg database.
14

COMMANDS

16       -l, --list [package-name-pattern...]
17           List all known packages matching one or more patterns, regardless
18           of their status, which includes any real or virtual package
19           referenced in any dependency relationship field (such as Breaks,
20           Enhances, etc.).  If no package-name-pattern is given, list all
21           packages in /var/lib/dpkg/status, excluding the ones marked as not-
22           installed (i.e.  those which have been previously purged).  Normal
23           shell wildcard characters are allowed in package-name-pattern.
24           Please note you will probably have to quote package-name-pattern to
25           prevent the shell from performing filename expansion.  For example
26           this will list all package names starting with “libc6”:
27
28            dpkg-query -l 'libc6*'
29
30           The first three columns of the output show the desired action, the
31           package status, and errors, in that order.
32
33           Desired action:
34
35           u = Unknown
36           i = Install
37           h = Hold
38           r = Remove
39           p = Purge
40
41           Package status:
42
43           n = Not-installed
44           c = Config-files
45           H = Half-installed
46           U = Unpacked
47           F = Half-configured
48           W = Triggers-awaiting
49           t = Triggers-pending
50           i = Installed
51
52           Error flags:
53
54           <empty> = (none)
55           R = Reinst-required
56
57           An uppercase status or error letter indicates the package is likely
58           to cause severe problems. Please refer to dpkg(1) for information
59           about the above states and flags.
60
61           The output format of this option is not configurable, but varies
62           automatically to fit the terminal width. It is intended for human
63           readers, and is not easily machine-readable. See -W (--show) and
64           --showformat for a way to configure the output format.
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66       -W, --show [package-name-pattern...]
67           Just like the --list option this will list all packages matching
68           the given pattern. However the output can be customized using the
69           --showformat option.  The default output format gives one line per
70           matching package, each line having the name (extended with the
71           architecture qualifier for Multi-Arch same packages) and installed
72           version of the package, separated by a tab.
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74       -s, --status [package-name...]
75           Report status of specified package. This just displays the entry in
76           the installed package status database.  If no package-name is
77           specified it will display all package entries in the status
78           database (since dpkg 1.19.1).  When multiple package-name entries
79           are listed, the requested status entries are separated by an empty
80           line, with the same order as specified on the argument list.
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82       -L, --listfiles package-name...
83           List files installed to your system from package-name. When
84           multiple package-name are listed, the requested lists of files are
85           separated by an empty line, with the same order as specified on the
86           argument list.  However, note that files created by package-
87           specific installation-scripts are not listed.
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89       --control-list package-name
90           List control files installed to your system from package-name
91           (since dpkg 1.16.5).  These can be used as input arguments to
92           --control-show.
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94       --control-show package-name control-file
95           Print the control-file installed to your system from package-name
96           to the standard output (since dpkg 1.16.5).
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98       -c, --control-path package-name [control-file]
99           List paths for control files installed to your system from package-
100           name (since dpkg 1.15.4).  If control-file is specified then only
101           list the path for that control file if it is present.
102
103           Warning: this command is deprecated as it gives direct access to
104           the internal dpkg database, please switch to use --control-list and
105           --control-show instead for all cases where those commands might
106           give the same end result. Although, as long as there is still at
107           least one case where this command is needed (i.e. when having to
108           remove a damaging postrm maintainer script), and while there is no
109           good solution for that, this command will not get removed.
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111       -S, --search filename-search-pattern...
112           Search for packages that own files corresponding to the given
113           pattern.  Standard shell wildcard characters can be used in the
114           pattern, where asterisk (*) and question mark (?) will match a
115           slash, and backslash (\) will be used as an escape character.
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117           If the first character in the filename-search-pattern is none of
118*[?/’ then it will be considered a substring match and will be
119           implicitly surrounded by ‘*’ (as in *filename-search-pattern*).  If
120           the subsequent string contains any of ‘*[?\’, then it will handled
121           like a glob pattern, otherwise any trailing ‘/’ or ‘/.’ will be
122           removed and a literal path lookup will be performed.
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124           This command will not list extra files created by maintainer
125           scripts, nor will it list alternatives.
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127       -p, --print-avail [package-name...]
128           Display details about packages, as found in
129           /var/lib/dpkg/available.  If no package-name is specified, it will
130           display all package entries in the available database (since dpkg
131           1.19.1).  When multiple package-name are listed, the requested
132           available entries are separated by an empty line, with the same
133           order as specified on the argument list.
134
135           Users of APT-based frontends should use apt show package-name
136           instead as the available file is only kept up-to-date when using
137           dselect.
138
139       -?, --help
140           Show the usage message and exit.
141
142       --version
143           Show the version and exit.
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OPTIONS

146       --admindir=dir
147           Change the location of the dpkg database. The default location is
148           /var/lib/dpkg.
149
150       --load-avail
151           Also load the available file when using the --show and --list
152           commands, which now default to only querying the status file (since
153           dpkg 1.16.2).
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155       --no-pager
156           Disables the use of any pager when showing information (since dpkg
157           1.19.2).
158
159       -f, --showformat=format
160           This option is used to specify the format of the output --show will
161           produce (short option since dpkg 1.13.1).  The format is a string
162           that will be output for each package listed.
163
164           In the format string, “\” introduces escapes:
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166           \n newline
167           \r carriage return
168           \t tab
169
170\” before any other character suppresses any special meaning of
171           the following character, which is useful for “\” and “$”.
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173           Package information can be included by inserting variable
174           references to package fields using the syntax “${field[;width]}”.
175           Fields are printed right-aligned unless the width is negative in
176           which case left alignment will be used. The following fields are
177           recognized but they are not necessarily available in the status
178           file (only internal fields or fields stored in the binary package
179           end up in it):
180
181           Architecture
182           Bugs
183           Conffiles (internal)
184           Config-Version (internal)
185           Conflicts
186           Breaks
187           Depends
188           Description
189           Enhances
190           Protected
191           Essential
192           Filename (internal, front-end related)
193           Homepage
194           Installed-Size
195           MD5sum (internal, front-end related)
196           MSDOS-Filename (internal, front-end related)
197           Maintainer
198           Origin
199           Package
200           Pre-Depends
201           Priority
202           Provides
203           Recommends
204           Replaces
205           Revision (obsolete)
206           Section
207           Size (internal, front-end related)
208           Source
209           Status (internal)
210           Suggests
211           Tag (usually not in .deb but in repository Packages files)
212           Triggers-Awaited (internal)
213           Triggers-Pending (internal)
214           Version
215
216           The following are virtual fields, generated by dpkg-query from
217           values from other fields (note that these do not use valid names
218           for fields in control files):
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220           binary:Package
221               It contains the binary package name with a possible
222               architecture qualifier like “libc6:amd64” (since dpkg 1.16.2).
223               An architecture qualifier will be present to make the package
224               name unambiguous, for example if the package has a Multi-Arch
225               field with a value of same or the package is of a foreign
226               architecture.
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228           binary:Synopsis
229               It contains the package short description (since dpkg 1.19.1).
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231           binary:Summary
232               This is an alias for binary:Synopsis (since dpkg 1.16.2).
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234           db:Status-Abbrev
235               It contains the abbreviated package status (as three
236               characters), such as “ii ” or “iHR” (since dpkg 1.16.2).  See
237               the --list command description for more details.
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239           db:Status-Want
240               It contains the package wanted status, part of the Status field
241               (since dpkg 1.17.11).
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243           db:Status-Status
244               It contains the package status word, part of the Status field
245               (since dpkg 1.17.11).
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247           db:Status-Eflag
248               It contains the package status error flag, part of the Status
249               field (since dpkg 1.17.11).
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251           db-fsys:Files
252               It contains the list of the package filesystem entries
253               separated by newlines (since dpkg 1.19.3).
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255           db-fsys:Last-Modified
256               It contains the timestamp in seconds of the last time the
257               package filesystem entries were modified (since dpkg 1.19.3).
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259           source:Package
260               It contains the source package name for this binary package
261               (since dpkg 1.16.2).
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263           source:Version
264               It contains the source package version for this binary package
265               (since dpkg 1.16.2)
266
267           source:Upstream-Version
268               It contains the source package upstream version for this binary
269               package (since dpkg 1.18.16)
270
271           The default format string is “${binary:Package}\t${Version}\n”.
272           Actually, all other fields found in the status file (i.e. user
273           defined fields) can be requested, too. They will be printed as-is,
274           though, no conversion nor error checking is done on them. To get
275           the name of the dpkg maintainer and the installed version, you
276           could run:
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278            dpkg-query -f='${binary:Package} ${Version}\t${Maintainer}\n' \
279             -W dpkg
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EXIT STATUS

282       0   The requested query was successfully performed.
283
284       1   The requested query failed either fully or partially, due to no
285           file or package being found (except for --control-path,
286           --control-list and --control-show were such errors are fatal).
287
288       2   Fatal or unrecoverable error due to invalid command-line usage, or
289           interactions with the system, such as accesses to the database,
290           memory allocations, etc.
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ENVIRONMENT

293   External environment
294       SHELL
295           Sets the program to execute when spawning a command via a shell
296           (since dpkg 1.19.2).
297
298       PAGER
299       DPKG_PAGER
300           Sets the pager command to use (since dpkg 1.19.1), which will be
301           executed with «$SHELL -c».  If SHELL is not set, «sh» will be used
302           instead.  The DPKG_PAGER overrides the PAGER environment variable
303           (since dpkg 1.19.2).
304
305       DPKG_ADMINDIR
306           If set and the --admindir option has not been specified, it will be
307           used as the dpkg data directory.
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309       DPKG_COLORS
310           Sets the color mode (since dpkg 1.18.5).  The currently accepted
311           values are: auto (default), always and never.
312
313   Internal environment
314       LESS
315           Defined by dpkg-query to “-FRSXMQ”, if not already set, when
316           spawning a pager (since dpkg 1.19.2).  To change the default
317           behavior, this variable can be preset to some other value including
318           an empty string, or the PAGER or DPKG_PAGER variables can be set to
319           disable specific options with «-+», for example DPKG_PAGER="less
320           -+F".
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SEE ALSO

323       dpkg(1).
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3271.20.9                            2021-04-13                     dpkg-query(1)
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