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

NAME
       dpkg-query - a tool to query the dpkg database

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  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 /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 “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 format.

       -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 listed.

       --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.

       --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 backslash (\) will be used as
              an escape character.

              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 /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.

       --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
              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).

       --no-pager
              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):

                  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
                     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.

              binary:Synopsis
                     It contains the package short description (since dpkg 1.19.1).

              binary:Summary
                     This is an alias for binary:Synopsis (since dpkg 1.16.2).

              db:Status-Abbrev
                     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 details.

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

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

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

              db-fsys:Files
                     It contains the list of the package filesystem entries separated by newlines (since dpkg 1.19.3).

              db-fsys:Last-Modified
                     It  contains  the  timestamp  in seconds of the last time the package filesystem entries were modified (since
                     dpkg 1.19.3).

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

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

              source:Upstream-Version
                     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 run:

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

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

       PAGER
       DPKG_PAGER
              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).

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

       DPKG_COLORS
              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
       dpkg(1).

1.19.7                                                      2019-06-03                                               dpkg-query(1)

Használat: dpkg-query [<opció> ...] <parancs>

Commands:
  -s, --status [<package>...]      Display package status details.
  -p, --print-avail [<package>...] Display available version details.
  -L, --listfiles <package>...     List files 'owned' by package(s).
  -l, --list [<pattern>...]        List packages concisely.
  -W, --show [<pattern>...]        Show information on package(s).
  -S, --search <pattern>...        Find package(s) owning file(s).
      --control-list <package>     Print the package control file list.
      --control-show <package> <file>
                                   Show the package control file.
  -c, --control-path <package> [<file>]
                                   Print path for package control file.

  -?, --help                       Show this help message.
      --version                    Show the version.

Options:
  --admindir=<directory>           Use <directory> instead of /var/lib/dpkg.
  --load-avail                     Use available file on --show and --list.
  -f|--showformat=<format>         Use alternative format for --show.

Formátum nyelvtan:
  A formátum egy füzér, mely minden csomagra kimegy. A forma
  szabvány escape sorokat is tartalmazhat, például: \n (újsor), \r (kocsi
  vissza) vagy \\ (sima per). Csomag adatok a csomag
  mezőire utaló változókkal szúrhatók be a ${var[;width]} szintaxis
  által. A mezők jobbra igazítottak, ha a szélesség negatív, akkor
  balra.