dwww Home | Manual pages | Find package

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 patterns. However the output can be customized using the
           --showformat option.

           The default output format gives one line per matching package, each
           line consisting of the package name and its installed version,
           separated by a tab.  The package name will be architecture
           qualified for packages with a Multi-Arch field with the value same
           or with a foreign architecture, which is an architecture that is
           neither the native one nor all.

       -s, --status [package-name...]
           Report status of specified packages. 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-names are listed, the requested lists of files are
           separated by an empty line, with the same order as specified on the
           argument list.

           Each file diversion is printed on its own line after its diverted
           file, prefixed with one of the following localized strings:

             locally diverted to: diverted-to
             package diverts others to: diverted-to
             diverted by pkg to: diverted-to

           Hint: When machine parsing the output, it is customary to set the
           locale to C.UTF-8 to get reproducible results.

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

       --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
           patterns.  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.

           The output format consists of one line per matching pattern, with a
           list of packages owning the pathname separated by a comma (U+002C
           ‘,’) and a space (U+0020 ‘ ’), followed by a colon (U+003A ‘:’) and
           a space, followed by the pathname. As in:

             pkgname1, pkgname2: pathname1
             pkgname3: pathname2

           File diversions are printed with the following localized strings:

             diversion by pkgname from: diverted-from
             diversion by pkgname to: diverted-to

           or for local diversions:

             local diversion from: diverted-from
             local diversion to: diverted-to

           Hint: When machine parsing the output, it is customary to set the
           locale to C.UTF-8 to get reproducible results.

       -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 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.

       --root=directory
           Set the root directory to directory, which sets the administrative
           directory to «directory/var/lib/dpkg» (since dpkg 1.21.0).

       --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
           Protected
           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 packages with a Multi-Arch field with the
               value same or with a foreign architecture, which is an
               architecture that is neither the native one nor all.

           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 -f='${binary:Package} ${Version}\t${Maintainer}\n' \
             -W 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_ROOT
           If set and the --root option has not been specified, it will be
           used as the filesystem root directory (since dpkg 1.21.0).

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

       DPKG_DEBUG
           Sets the debug mask (since dpkg 1.21.10) from an octal value.  The
           currently accepted flags are described in the dpkg --debug option,
           but not all these flags might have an effect on this program.

       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).

1.21.22                           2023-05-11                     dpkg-query(1)

Generated by dwww version 1.15 on Sun Jun 16 20:14:23 CEST 2024.