dpkg-query(1) — Linux manual page


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

NAME         top

       dpkg-query - a tool to query the dpkg database

SYNOPSIS         top

       dpkg-query [option...] command

DESCRIPTION         top

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

COMMANDS         top

       -l, --list [package-name-pattern...]
              List all known packages matching one or more patterns,
              regardless of their status, which includes any real or virtual
              package referenced in any dependency relationship field (such
              as Breaks, Enhances, etc.).  If no package-name-pattern is
              given, list all packages in /usr/local/var/lib/dpkg/status,
              excluding the ones marked as not-installed (i.e.  those which
              have been previously purged).  Normal shell wildcard
              characters are allowed in package-name-pattern.  Please note
              you will probably have to quote package-name-pattern to
              prevent the shell from performing filename expansion.  For
              example this will list all package names starting with

                dpkg-query -l 'libc6*'

              The first three columns of the output show the desired action,
              the package status, and errors, in that order.

              Desired action:
                u = Unknown
                i = Install
                h = Hold
                r = Remove
                p = Purge

              Package status:
                n = Not-installed
                c = Config-files
                H = Half-installed
                U = Unpacked
                F = Half-configured
                W = Triggers-awaiting
                t = Triggers-pending
                i = Installed

              Error flags:
                <empty> = (none)
                R = Reinst-required

              An uppercase status or error letter indicates the package is
              likely to cause severe problems. Please refer to dpkg(1) for
              information about the above states and flags.

              The output format of this option is not configurable, but
              varies automatically to fit the terminal width. It is intended
              for human readers, and is not easily machine-readable. See -W
              (--show) and --showformat for a way to configure the output

       -W, --show [package-name-pattern...]
              Just like the --list option this will list all packages
              matching the given pattern. However the output can be
              customized using the --showformat option.  The default output
              format gives one line per matching package, each line having
              the name (extended with the architecture qualifier for
              Multi-Arch same packages) and installed version of the
              package, separated by a tab.

       -s, --status [package-name...]
              Report status of specified package. This just displays the
              entry in the installed package status database.  If no
              package-name is specified it will display all package entries
              in the status database (since dpkg 1.19.1).  When multiple
              package-name entries are listed, the requested status entries
              are separated by an empty line, with the same order as
              specified on the argument list.

       -L, --listfiles package-name...
              List files installed to your system from package-name. When
              multiple package-name are listed, the requested lists of files
              are separated by an empty line, with the same order as
              specified on the argument list.  However, note that files
              created by package-specific installation-scripts are not

       --control-list package-name
              List control files installed to your system from package-name
              (since dpkg 1.16.5).  These can be used as input arguments to

       --control-show package-name control-file
              Print the control-file installed to your system from package-
              name to the standard output (since dpkg 1.16.5).

       -c, --control-path package-name [control-file]
              List paths for control files installed to your system from
              package-name (since dpkg 1.15.4).  If control-file is
              specified then only list the path for that control file if it
              is present.

              Warning: this command is deprecated as it gives direct access
              to the internal dpkg database, please switch to use
              --control-list and --control-show instead for all cases where
              those commands might give the same end result. Although, as
              long as there is still at least one case where this command is
              needed (i.e. when having to remove a damaging postrm
              maintainer script), and while there is no good solution for
              that, this command will not get removed.

       -S, --search filename-search-pattern...
              Search for packages that own files corresponding to the given
              pattern.  Standard shell wildcard characters can be used in
              the pattern, where asterisk (*) and question mark (?) will
              match a slash, and blackslash (\) will be used as an escape

              If the first character in the filename-search-pattern is none
              of ‘*[?/’ then it will be considered a substring match and
              will be implicitly surrounded by ‘*’ (as in *filename-search-
              pattern*).  If the subsequent string contains any of ‘*[?\’,
              then it will handled like a glob pattern, otherwise any
              trailing ‘/’ or ‘/.’ will be removed and a literal path lookup
              will be performed.

              This command will not list extra files created by maintainer
              scripts, nor will it list alternatives.

       -p, --print-avail [package-name...]
              Display details about packages, as found in
              /usr/local/var/lib/dpkg/available.  If no package-name is
              specified, it will display all package entries in the
              available database (since dpkg 1.19.1).  When multiple
              package-name are listed, the requested available entries are
              separated by an empty line, with the same order as specified
              on the argument list.

              Users of APT-based frontends should use apt-cache show
              package-name instead as the available file is only kept up-to-
              date when using dselect.

       -?, --help
              Show the usage message and exit.

              Show the version and exit.

OPTIONS         top

              Change the location of the dpkg database. The default location
              is /usr/local/var/lib/dpkg.

              Also load the available file when using the --show and --list
              commands, which now default to only querying the status file
              (since dpkg 1.16.2).

              Disables the use of any pager when showing information (since
              dpkg 1.19.2).

       -f, --showformat=format
              This option is used to specify the format of the output --show
              will produce (short option since dpkg 1.13.1).  The format is
              a string that will be output for each package listed.

              In the format string, “\” introduces escapes:

                  \n  newline
                  \r  carriage return
                  \t  tab

              “\” before any other character suppresses any special meaning
              of the following character, which is useful for “\” and “$”.

              Package information can be included by inserting variable
              references to package fields using the syntax
              “${field[;width]}”. Fields are printed right-aligned unless
              the width is negative in which case left alignment will be
              used. The following fields are recognized but they are not
              necessarily available in the status file (only internal fields
              or fields stored in the binary package end up in it):

                  Conffiles (internal)
                  Config-Version (internal)
                  Filename (internal, front-end related)
                  MD5sum (internal, front-end related)
                  MSDOS-Filename (internal, front-end related)
                  Revision (obsolete)
                  Size (internal, front-end related)
                  Status (internal)
                  Tag (usually not in .deb but in repository Packages files)
                  Triggers-Awaited (internal)
                  Triggers-Pending (internal)

              The following are virtual fields, generated by dpkg-query from
              values from other fields (note that these do not use valid
              names for fields in control files):

                     It contains the binary package name with a possible
                     architecture qualifier like “libc6:amd64” (since dpkg
                     1.16.2).  An architecture qualifier will be present to
                     make the package name unambiguous, for example if the
                     package has a Multi-Arch field with a value of same or
                     the package is of a foreign architecture.

                     It contains the package short description (since dpkg

                     This is an alias for binary:Synopsis (since dpkg

                     It contains the abbreviated package status (as three
                     characters), such as “ii ” or “iHR” (since dpkg
                     1.16.2).  See the --list command description for more

                     It contains the package wanted status, part of the
                     Status field (since dpkg 1.17.11).

                     It contains the package status word, part of the Status
                     field (since dpkg 1.17.11).

                     It contains the package status error flag, part of the
                     Status field (since dpkg 1.17.11).

                     It contains the list of the package filesystem entries
                     separated by newlines (since dpkg 1.19.3).

                     It contains the timestamp in seconds of the last time
                     the package filesystem entries were modified (since
                     dpkg 1.19.3).

                     It contains the source package name for this binary
                     package (since dpkg 1.16.2).

                     It contains the source package version for this binary
                     package (since dpkg 1.16.2)

                     It contains the source package upstream version for
                     this binary package (since dpkg 1.18.16)

              The default format string is
              “${binary:Package}\t${Version}\n”.  Actually, all other fields
              found in the status file (i.e. user defined fields) can be
              requested, too. They will be printed as-is, though, no
              conversion nor error checking is done on them. To get the name
              of the dpkg maintainer and the installed version, you could

                dpkg-query -W -f='${binary:Package} ${Version}\t${Maintainer}\n' dpkg

EXIT STATUS         top

       0      The requested query was successfully performed.

       1      The requested query failed either fully or partially, due to
              no file or package being found (except for --control-path,
              --control-list and --control-show were such errors are fatal).

       2      Fatal or unrecoverable error due to invalid command-line
              usage, or interactions with the system, such as accesses to
              the database, memory allocations, etc.

ENVIRONMENT         top

   External environment
       SHELL  Sets the program to execute when spawning a command via a
              shell (since dpkg 1.19.2).

              Sets the pager command to use (since dpkg 1.19.1), which will
              be executed with «$SHELL -c».  If SHELL is not set, «sh» will
              be used instead.  The DPKG_PAGER overrides the PAGER
              environment variable (since dpkg 1.19.2).

              If set and the --admindir option has not been specified, it
              will be used as the dpkg data directory.

              Sets the color mode (since dpkg 1.18.5).  The currently
              accepted values are: auto (default), always and never.

   Internal environment
       LESS   Defined by dpkg-query to “-FRSXMQ”, if not already set, when
              spawning a pager (since dpkg 1.19.2).  To change the default
              behavior, this variable can be preset to some other value
              including an empty string, or the PAGER or DPKG_PAGER
              variables can be set to disable specific options with «-+»,
              for example DPKG_PAGER="less -+F".

SEE ALSO         top


COLOPHON         top

       This page is part of the dpkg (Debian Package Manager) project.
       Information about the project can be found at 
       ⟨https://wiki.debian.org/Teams/Dpkg/⟩.  If you have a bug report for
       this manual page, see
       ⟨http://bugs.debian.org/cgi-bin/pkgreport.cgi?src=dpkg⟩.  This page
       was obtained from the project's upstream Git repository
       ⟨https://salsa.debian.org/dpkg-team/dpkg.git⟩ on 2020-11-01.  (At
       that time, the date of the most recent commit that was found in the
       repository was 2020-07-08.)  If you discover any rendering problems
       in this HTML version of the page, or you believe there is a better or
       more up-to-date source for the page, or you have corrections or im‐
       provements to the information in this COLOPHON (which is not part of
       the original manual page), send a mail to man-pages@man7.org

1.19.6-2-g6e42d5                 2019-03-25                    dpkg-query(1)

Pages that refer to this page: dpkg(1)dpkg-deb(1)