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

6       dpkg-query - a tool to query the dpkg database
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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 packages matching given pattern. If no package-name-pattern
18              is  given,  list all packages in /var/lib/dpkg/status, excluding
19              the ones marked as not-installed (i.e.  those  which  have  been
20              previously purged). Normal shell wildcard characters are allowed
21              in package-name-pattern. Please note you will probably  have  to
22              quote  package-name-pattern to prevent the shell from performing
23              filename expansion. For example this will list all package names
24              starting with “libc6”:
25
26                dpkg-query -l 'libc6*'
27
28              The  first  three columns of the output show the desired action,
29              the package status, and errors, in that order.
30
31              Desired action:
32                u = Unknown
33                i = Install
34                h = Hold
35                r = Remove
36                p = Purge
37
38              Package status:
39                n = Not-installed
40                c = Config-files
41                H = Half-installed
42                U = Unpacked
43                F = Half-configured
44                W = Triggers-awaiting
45                t = Triggers-pending
46                i = Installed
47
48              Error flags:
49                <empty> = (none)
50                R = Reinst-required
51
52              An uppercase status or error letter  indicates  the  package  is
53              likely  to  cause  severe  problems. Please refer to dpkg(1) for
54              information about the above states and flags.
55
56              The output format of this option is not configurable, but varies
57              automatically  to  fit  the  terminal  width. It is intended for
58              human readers,  and  is  not  easily  machine-readable.  See  -W
59              (--show)  and  --showformat  for  a  way to configure the output
60              format.
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62       -W, --show [package-name-pattern...]
63              Just like the --list option this will list all packages matching
64              the  given  pattern.  However the output can be customized using
65              the --showformat option.  The default output  format  gives  one
66              line  per  matching package, each line having the name (extended
67              with the architecture qualifier for  Multi-Arch  same  packages)
68              and installed version of the package, separated by a tab.
69
70       -s, --status package-name...
71              Report status of specified package. This just displays the entry
72              in the installed package status database. When multiple package-
73              name  are  listed, the requested status entries are separated by
74              an empty line, with the same order as specified on the  argument
75              list.
76
77       -L, --listfiles package-name...
78              List  files  installed  to  your  system from package-name. When
79              multiple package-name are listed, the requested lists  of  files
80              are separated by an empty line, with the same order as specified
81              on the argument list.   However,  note  that  files  created  by
82              package-specific installation-scripts are not listed.
83
84       --control-list package-name
85              List  control  files  installed to your system from package-name
86              (since dpkg 1.16.5).  These can be used as  input  arguments  to
87              --control-show.
88
89       --control-show package-name control-file
90              Print  the  control-file  installed to your system from package-
91              name to the standard output (since dpkg 1.16.5).
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93       -c, --control-path package-name [control-file]
94              List paths for control  files  installed  to  your  system  from
95              package-name  (since dpkg 1.15.4).  If control-file is specified
96              then only list the path for that control file if it is present.
97
98              Warning: this command is deprecated as it gives direct access to
99              the  internal dpkg database, please switch to use --control-list
100              and --control-show instead for all cases  where  those  commands
101              might  give  the  same end result. Although, as long as there is
102              still at least one case where this command is needed (i.e.  when
103              having to remove a damaging postrm maintainer script), and while
104              there is no good solution for that, this command  will  not  get
105              removed.
106
107       -S, --search filename-search-pattern...
108              Search  for  packages  that own files corresponding to the given
109              pattern.  Standard shell wildcard characters can be used in  the
110              pattern,  where  asterisk (*) and question mark (?) will match a
111              slash, and blackslash (\) will be used as an escape character.
112
113              If the first character in the filename-search-pattern is none of
114*[?/’  then it will be considered a substring match and will be
115              implicitly surrounded by ‘*’ (as in  *filename-search-pattern*).
116              If  the  subsequent  string contains any of ‘*[?\’, then it will
117              handled like a glob pattern, otherwise any trailing ‘/’ or  ‘/.
118              will be removed and a literal path lookup will be performed.
119
120              This  command  will  not  list extra files created by maintainer
121              scripts, nor will it list alternatives.
122
123       -p, --print-avail package-name...
124              Display   details    about    package-name,    as    found    in
125              /var/lib/dpkg/available.  When multiple package-name are listed,
126              the requested available entries are separated by an empty  line,
127              with the same order as specified on the argument list.
128
129              Users  of APT-based frontends should use apt-cache show package-
130              name instead as the available file is only kept up-to-date  when
131              using dselect.
132
133       -?, --help
134              Show the usage message and exit.
135
136       --version
137              Show the version and exit.
138

OPTIONS

140       --admindir=dir
141              Change  the  location of the dpkg database. The default location
142              is /var/lib/dpkg.
143
144       --load-avail
145              Also load the available file when using the  --show  and  --list
146              commands,  which  now  default  to only querying the status file
147              (since dpkg 1.16.2).
148
149       -f, --showformat=format
150              This option is used to specify the format of the  output  --show
151              will  produce.  The  format  is a string that will be output for
152              each package listed.
153
154              In the format string, “\” introduces escapes:
155
156                  \n  newline
157                  \r  carriage return
158                  \t  tab
159
160\” before any other character suppresses any special meaning of
161              the following character, which is useful for “\” and “$”.
162
163              Package  information  can  be  included  by  inserting  variable
164              references    to    package    fields    using    the     syntax
165${field[;width]}”.  Fields are printed right-aligned unless the
166              width is negative in which case left alignment will be used. The
167              following  fields  are  recognized  but they are not necessarily
168              available in the status file (only  internal  fields  or  fields
169              stored in the binary package end up in it):
170
171                  Architecture
172                  Bugs
173                  Conffiles (internal)
174                  Config-Version (internal)
175                  Conflicts
176                  Breaks
177                  Depends
178                  Description
179                  Enhances
180                  Essential
181                  Filename (internal, front-end related)
182                  Homepage
183                  Installed-Size
184                  MD5sum (internal, front-end related)
185                  MSDOS-Filename (internal, front-end related)
186                  Maintainer
187                  Origin
188                  Package
189                  Pre-Depends
190                  Priority
191                  Provides
192                  Recommends
193                  Replaces
194                  Revision (obsolete)
195                  Section
196                  Size (internal, front-end related)
197                  Source
198                  Status (internal)
199                  Suggests
200                  Tag (usually not in .deb but in repository Packages files)
201                  Triggers-Awaited (internal)
202                  Triggers-Pending (internal)
203                  Version
204
205              The  following  are virtual fields, generated by dpkg-query from
206              values from other fields (note that these do not use valid names
207              for fields in control files):
208
209              binary:Package
210                     It  contains  the  binary  package  name  with a possible
211                     architecture qualifier  like  “libc6:amd64”  (since  dpkg
212                     1.16.2).   An  architecture  qualifier will be present to
213                     make the package name unambiguous,  for  example  if  the
214                     package  has  a  Multi-Arch field with a value of same or
215                     the package is of a foreign architecture.
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217              binary:Summary
218                     It contains the package  short  description  (since  dpkg
219                     1.16.2).
220
221              db:Status-Abbrev
222                     It  contains  the  abbreviated  package  status (as three
223                     characters), such as “ii ” or “iHR” (since dpkg  1.16.2).
224                     See the --list command description for more details.
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226              db:Status-Want
227                     It contains the package wanted status, part of the Status
228                     field (since dpkg 1.17.11).
229
230              db:Status-Status
231                     It contains the package status word, part of  the  Status
232                     field (since dpkg 1.17.11).
233
234              db:Status-Eflag
235                     It  contains  the  package status error flag, part of the
236                     Status field (since dpkg 1.17.11).
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238              source:Package
239                     It contains the  source  package  name  for  this  binary
240                     package (since dpkg 1.16.2).
241
242              source:Version
243                     It  contains  the  source package version for this binary
244                     package (since dpkg 1.16.2)
245
246              source:Upstream-Version
247                     It contains the source package upstream version for  this
248                     binary package (since dpkg 1.18.16)
249
250              The  default format string is “${binary:Package}\t${Version}\n”.
251              Actually, all other fields found in the status file  (i.e.  user
252              defined  fields) can be requested, too. They will be printed as-
253              is, though, no conversion nor error checking is done on them. To
254              get  the  name of the dpkg maintainer and the installed version,
255              you could run:
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257                dpkg-query -W -f='${binary:Package} ${Version}\t${Maintainer}\n' dpkg
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EXIT STATUS

260       0      The requested query was successfully performed.
261
262       1      The requested query failed either fully or partially, due to  no
263              file   or   package  being  found  (except  for  --control-path,
264              --control-list and --control-show were such errors are fatal).
265
266       2      Fatal or unrecoverable error due to invalid command-line  usage,
267              or  interactions  with  the  system,  such  as  accesses  to the
268              database, memory allocations, etc.
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ENVIRONMENT

271       DPKG_ADMINDIR
272              If set and the --admindir option has not been specified, it will
273              be used as the dpkg data directory.
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275       COLUMNS
276              This  setting  influences  the  output  of  the --list option by
277              changing the width of its output.
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SEE ALSO

280       dpkg(1).
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2851.18.25                           2018-06-26                     dpkg-query(1)
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