dpkg-query


SYNOPSIS
       dpkg-query [option...] command

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

COMMANDS
       -l, --list [package-name-pattern...]
              List packages matching given pattern. If no package-name-pattern
              is  given,  list all packages in /var/lib/dpkg/status, excluding
              the ones marked as not-installed (i.e.  those  which  have  been
              previously  purged). Normal shell wildchars are allowed in pack-
              age-name-pattern. Please note you will probably  have  to  quote
              package-name-pattern  to prevent the shell from performing file-
              name expansion. For example this will  list  all  package  names
              starting with "libc6":

                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 for-
              mat.
              name  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 mul-
              tiple 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 listed.

       --control-list package-name
              List  control  files installed to your system from package-name.
              These can be used as input arguments to --control-show.

       --control-show package-name control-file
              Print the control-file installed to your  system  from  package-
              name to the standard output.

       -c, --control-path package-name [control-file]
              List paths for control files installed to your system from pack-
              age-name.  If control-file is specified then only list the  path
              for that control file if it is present. Warning: this command is
              deprecated, please  switch  to  use  --control-list  and  --con-
              trol-show instead.

       -S, --search filename-search-pattern...
              Search  for  packages  that own files corresponding to the given
              pattern.  Standard shell wildchars can be used in  the  pattern.
              This  command  will  not  list extra files created by maintainer
              scripts, nor will it list alternatives.

       -p, --print-avail package-name...
              Display   details    about    package-name,    as    found    in
              /var/lib/dpkg/available.  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.

       --version
              Show the version and exit.

OPTIONS
       --admindir=dir
              Change  the  location of the dpkg database. The default location
              is /var/lib/dpkg.

       --load-avail
                  \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 refer-
              ences  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 pack-
              age end up in it):

                  Architecture
                  Bugs
                  Conffiles (internal)
                  Config-Version (internal)
                  Conflicts
                  Breaks
                  Depends
                  Description
                  Enhances
                  Essential
                  Filename (internal, front-end related)
                  Homepage
                  Installed-Size
                  MD5sum (internal, front-end related)
                  MSDOS-Filename (internal, front-end related)
                  Maintainer
                  Origin
                  Package
                  Pre-Depends
                  Priority
                  Provides
                  Recommends
                  Replaces
                  Revision (obsolete)
                  Section
                  Size (internal, front-end related)
                  Source
                  Status (internal)
                  Suggests
                  Tag (usually not in .deb but in repository Packages files)
                  Triggers-Awaited (internal)
                  Triggers-Pending (internal)
                  Version

              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):

                  binary:Package
                  binary:Summary
                  db:Status-Abbrev

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

EXIT STATUS
       0      The requested query was successfully performed.

       1      Problems were encountered while parsing the command line or per-
              forming  the  query,  including  no  file or package being found
              (except for --control-path).

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

       COLUMNS
              This  setting  influences  the  output  of  the --list option by
              changing the width of its output.

SEE ALSO
       dpkg(1).




Debian Project                    2012-04-03                     dpkg-query(1)
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