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APTITUDE(8)                 Command-Line Reference                 APTITUDE(8)

NAME
       aptitude - high-level interface to the package manager

SYNOPSIS
       aptitude [<options>...] {autoclean | clean | forget-new | keep-all |
                update | upgrade}

       aptitude [<options>...] {changelog | dist-upgrade | download |
                forbid-version | hold | install | keep-all | markauto | purge
                | reinstall | remove | show | unhold | unmarkauto}
                <packages>...

       aptitude [<options>...] search <patterns>...

       aptitude [-S <fname>] [-u | -i]

       aptitude help

DESCRIPTION
       aptitude is a text-based interface to the Debian GNU/Linux package
       system.

       It allows the user to view the list of packages and to perform package
       management tasks such as installing, upgrading, and removing packages.
       Actions may be performed from a visual interface or from the
       command-line.

COMMAND-LINE ACTIONS
       The first argument which does not begin with a hyphen ("\fB-\fR") is
       considered to be an action that the program should perform. If an
       action is not specified on the command-line, aptitude will start up in
       visual mode.

       The following actions are available:

       \fBinstall\fR
           Install one or more packages. The packages should be listed after
           the "install" command; if a package name contains a tilde character
           ("\fB~\fR"), it will be treated as a search pattern and every
           package matching the pattern will be installed (see the section
           "Search Patterns" in the aptitude reference manual).

           To select a particular version of the package, append
           "\fB=<version>\fR" to the package name: for instance, "\fBaptitude
           install apt=0.3.1\fR". Similarly, to select a package from a
           particular archive, append "\fB/<archive>\fR" to the package name:
           for instance, "\fBaptitude install apt/experimental\fR".

           Not every package listed on the command line has to be installed;
           you can tell aptitude to do something different with a package by
           appending an "override specifier" to the name of the package. For
           example, \fBaptitude remove wesnoth+\fR will install \fBwesnoth\fR,
           not remove it. The following override specifiers are available:

           <package>\fB+\fR
               Install <package>.

           <package>\fB+M\fR
               Install <package> and immediately mark it as automatically
               installed (note that if nothing depends on <package>, this will
               cause it to be immediately removed).

           <package>\fB-\fR
               Remove <package>.

           <package>\fB_\fR
               Purge <package>: remove it and all its associated configuration
               and data files.

           <package>\fB=\fR
               Place <package> on hold: cancel any active installation,
               upgrade, or removal, and prevent this package from being
               automatically upgraded in the future.

           <package>\fB:\fR
               Keep <package> at its current version: cancel any installation,
               removal, or upgrade. Unlike "hold" (above) this does not
               prevent automatic upgrades in the future.

           <package>\fB&M\fR
               Mark <package> as having been automatically installed.

           <package>\fB&m\fR
               Mark <package> as having been manually installed.

           As a special case, "\fBinstall\fR" with no arguments will act on
           any stored/pending actions.

           Note
           Once you enter Y at the final confirmation prompt, the
           "\fBinstall\fR" command will modify aptitude's stored information
           about what actions to perform. Therefore, if you issue (e.g.) the
           command "\fBaptitude install foo bar\fR" and then abort the
           installation once aptitude has started downloading and installing
           packages, you will need to run "\fBaptitude remove foo bar\fR" to
           cancel that order.

       \fBremove\fR, \fBpurge\fR, \fBhold\fR, \fBunhold\fR, \fBkeep\fR,
       \fBreinstall\fR
           These commands are the same as "\fBinstall\fR", but apply the named
           action to all packages given on the command line for which it is
           not overridden. The difference between \fBhold\fR and \fBkeep\fR is
           that \fBhold\fR will cause a package to be ignored by future
           \fBupgrade\fR commands, while \fBkeep\fR merely cancels any
           scheduled actions on the package.  \fBunhold\fR will cause a
           package to be upgraded by future \fBupgrade\fR commands, without
           otherwise altering its state.

           For instance, "\fBaptitude remove '~ndeity'\fR" will remove all
           packages whose name contains "\fBdeity\fR".

       \fBmarkauto\fR, \fBunmarkauto\fR
           Mark packages as automatically installed or manually installed,
           respectively. Packages are specified in exactly the same way as for
           the "\fBinstall\fR" command. For instance, "\fBaptitude markauto
           '~slibs'\fR" will mark all packages in the "\fBlibs\fR" section as
           having been automatically installed.

           For more information on automatically installed packages, see the
           section "Managing Automatically Installed Packages" in the aptitude
           reference manual.

       \fBforbid-version\fR
           Forbid a package from being upgraded to a particular version. This
           will prevent aptitude from automatically upgrading to this version,
           but will allow automatic upgrades to future versions. By default,
           aptitude will select the version to which the package would
           normally be upgraded; you may override this selection by appending
           "\fB=<version>\fR" to the package name: for instance, "\fBaptitude
           forbid-version vim=1.2.3.broken-4\fR".

           This command is useful for avoiding broken versions of packages
           without having to set and clear manual holds. If you decide you
           really want the forbidden version after all, the "\fBinstall\fR"
           command will remove the ban.

       \fBupdate\fR
           Updates the list of available packages from the apt sources (this
           is equivalent to "\fBapt-get update\fR")

       \fBupgrade\fR
           Upgrades installed packages to their most recent version. Installed
           packages will not be removed unless they are unused (see the
           section "Managing Automatically Installed Packages" in the aptitude
           reference manual); packages which are not currently installed will
           not be installed.

           If a package cannot be upgraded without violating these
           constraints, it will be kept at its current version. Use the
           \fBdist-upgrade\fR command to upgrade these packages as well.

       \fBdist-upgrade\fR
           Upgrades installed packages to their most recent version, removing
           or installing packages as necessary. This command is less
           conservative than \fBupgrade\fR and thus more likely to perform
           unwanted actions. Users are advised to either use \fBupgrade\fR
           instead or to carefully inspect the list of packages to be
           installed and removed.

       \fBkeep-all\fR
           Cancels all scheduled actions on all packages; any packages whose
           sticky state indicates an installation, removal, or upgrade will
           have this sticky state cleared.

       \fBforget-new\fR
           Forgets all internal information about what packages are "new"
           (equivalent to pressing "f" when in visual mode).

       \fBsearch\fR
           Searches for packages matching one of the patterns supplied on the
           command line. All packages which match any of the given patterns
           will be displayed; for instance, "\fBaptitude search '~N'\fR" will
           list all "new" packages. For more information on search patterns,
           see the section "Search Patterns" in the aptitude reference manual.

           Unless you pass the \fB-F\fR option, the output of \fBaptitude
           search\fR will look something like this:

               i   apt                             - Advanced front-end for dpkg
               pi  apt-build                       - frontend to apt to build, optimize and in
               cp  apt-file                        - APT package searching utility -- command-
               ihA raptor-utils                    - Raptor RDF Parser utilities
           Each search result is listed on a separate line. The first
           character of each line indicates the current state of the package:
           the most common states are \fBp\fR, meaning that no trace of the
           package exists on the system, \fBc\fR, meaning that the package was
           deleted but its configuration files remain on the system, \fBi\fR,
           meaning that the package is installed, and \fBv\fR, meaning that
           the package is virtual. The second character indicates the stored
           action (if any; otherwise a blank space is displayed) to be
           performed on the package, with the most common actions being
           \fBi\fR, meaning that the package will be installed, \fBd\fR,
           meaning that the package will be deleted, and \fBp\fR, meaning that
           the package and its configuration files will be removed. If the
           third character is \fBA\fR, the package was automatically
           installed.

           For a complete list of the possible state and action flags, see the
           section "Accessing Package Information" in the aptitude reference
           guide.

       \fBshow\fR
           Displays detailed information about one or more packages, listed
           following the search command. If a package name contains a tilde
           character ("\fB~\fR"), it will be treated as a search pattern and
           all matching packages will be displayed (see the section "Search
           Patterns" in the aptitude reference manual).

           If the verbosity level is 1 or greater (i.e., at least one \fB-v\fR
           is present on the command-line), information about all versions of
           the package is displayed. Otherwise, information about the
           "candidate version" (the version that "\fBaptitude install\fR"
           would download) is displayed.

           You can display information about a different version of the
           package by appending \fB=<version>\fR to the package name; you can
           display the version from a particular archive by appending
           \fB/<archive>\fR to the package name. If either of these is
           present, then only the version you request will be displayed,
           regardless of the verbosity level.

           If the verbosity level is 1 or greater, the package's architecture,
           compressed size, filename, and md5sum fields will be displayed. If
           the verbosity level is 2 or greater, the select version or versions
           will be displayed once for each archive in which they are found.

       \fBclean\fR
           Removes all previously downloaded \fB.deb\fR files from the package
           cache directory (usually /var/cache/apt/archives).

       \fBautoclean\fR
           Removes any cached packages which can no longer be downloaded. This
           allows you to prevent a cache from growing out of control over time
           without completely emptying it.

       \fBchangelog\fR
           Downloads and displays the Debian changelog for each of the given
           source or binary packages.

           By default, the changelog for the version which would be installed
           with "\fBaptitude install\fR" is downloaded. You can select a
           particular version of a package by appending \fB=<version>\fR to
           the package name; you can select the version from a particular
           archive by appending \fB/<archive>\fR to the package name.

       \fBdownload\fR
           Downloads the \fB.deb\fR file for the given package to the current
           directory.

           By default, the version which would be installed with "\fBaptitude
           install\fR" is downloaded. You can select a particular version of a
           package by appending \fB=<version>\fR to the package name; you can
           select the version from a particular archive by appending
           \fB/<archive>\fR to the package name.

       \fBhelp\fR
           Displays a brief summary of the available commands and options.

OPTIONS
       The following options may be used to modify the behavior of the actions
       described above. Note that while all options will be accepted for all
       commands, some options don't apply to particular commands and will be
       ignored by those commands.

       \fB-D\fR, \fB--show-deps\fR
           For commands that will install or remove packages (\fBinstall\fR,
           \fBupgrade\fR, etc), show brief explanations of automatic
           installations and removals.

           This corresponds to the configuration option
           \fBAptitude::CmdLine::Show-Deps\fR.

       \fB-d\fR, \fB--download-only\fR
           Download packages to the package cache as necessary, but do not
           install or remove anything. By default, the package cache is stored
           in /var/cache/apt/archives.

           This corresponds to the configuration option
           \fBAptitude::CmdLine::Download-Only\fR.

       \fB-F\fR <format>, \fB--display-format\fR <format>
           Specify the format which should be used to display output from the
           \fBsearch\fR command. For instance, passing "\fB%p %V %v\fR" for
           <format> will display a package's name, followed by its currently
           installed version and its available version (see the section
           "Customizing how packages are displayed" in the aptitude reference
           manual for more information).

           This corresponds to the configuration option
           \fBAptitude::CmdLine::Package-Display-Format\fR.

       \fB-f\fR
           Try hard to fix the dependencies of broken packages, even if it
           means ignoring the actions requested on the command line.

           This corresponds to the configuration item
           \fBAptitude::CmdLine::Fix-Broken\fR.

       \fB-h\fR, \fB--help\fR
           Display a brief help message. Identical to the \fBhelp\fR action.

       \fB--purge-unused\fR
           Purge packages that are no longer required by any installed
           package. This is equivalent to passing "\fB-o
           Aptitude::Purge-Unused=true\fR" as a command-line argument.

       \fB-P\fR, \fB--prompt\fR
           Always display a prompt, even when no actions other than those
           explicitly requested will be performed.

           This corresponds to the configuration option
           \fBAptitude::CmdLine::Always-Prompt\fR.

       \fB-R\fR, \fB--without-recommends\fR
           Do not treat recommendations as dependencies when installing new
           packages (this overrides settings in /etc/apt/apt.conf and
           ~/.aptitude/config).

           This corresponds to the configuration option
           \fBAptitude::Recommends-Important\fR

       \fB-r\fR, \fB--with-recommends\fR
           Treat recommendations as dependencies when installing new packages
           (this overrides settings in /etc/apt/apt.conf and
           ~/.aptitude/config).

           This corresponds to the configuration option
           \fBAptitude::Recommends-Important\fR

       \fB-s\fR, \fB--simulate\fR
           In command-line mode, print the actions that would normally be
           performed, but don't actually perform them. This does not require
           root privileges. In the visual interface, always open the cache in
           read-only mode regardless of whether you are root.

           This corresponds to the configuration option
           \fBAptitude::Simulate\fR.

       \fB--schedule-only\fR
           For commands that modify package states, schedule operations to be
           performed in the future, but don't perform them. You can execute
           scheduled actions by running \fBaptitude install\fR with no
           arguments. This is equivalent to making the corresponding
           selections in visual mode, then exiting the program normally.

           For instance, \fBaptitude --schedule-only install evolution\fR will
           schedule the \fBevolution\fR package for later installation.

       \fB-t\fR <release>, \fB--target-release\fR <release>
           Set the release from which packages should be installed. For
           instance, "\fBaptitude -t experimental ...\fR" will install
           packages from the experimental distribution unless you specify
           otherwise. For the command-line actions "changelog", "download",
           and "show", this is equivalent to appending \fB/<release>\fR to
           each package named on the command-line; for other commands, this
           will affect the default candidate version of packages according to
           the rules described in apt_preferences(5).

           This corresponds to the configuration item
           \fBAPT::Default-Release\fR.

       \fB-O\fR <order>, \fB--sort\fR <order>
           Specify the order in which output from the \fBsearch\fR command
           should be displayed. For instance, passing "\fBinstallsize\fR" for
           <order> will list packages in order according to their size when
           installed (see the section "Customizing how packages are sorted" in
           the aptitude reference manual for more information).

       \fB-o\fR <key>\fB=\fR<value>
           Set a configuration file option directly; for instance, use \fB-o
           Aptitude::Log=/tmp/my-log\fR to log aptitude's actions to
           /tmp/my-log. For more information on configuration file options,
           see the section "Configuration file reference" in the aptitude
           reference manual.

       \fB-q[=<n>]\fR, \fB--quiet[=<n>]\fR
           Suppress all incremental progress indicators, thus making the
           output loggable. This may be supplied multiple times to make the
           program quieter, but unlike apt-get, aptitude does not enable
           \fB-y\fR when \fB-q\fR is supplied more than once.

           The optional \fB=<n>\fR may be used to directly set the amount of
           quietness (for instance, to override a setting in
           /etc/apt/apt.conf); it causes the program to behave as if \fB-q\fR
           had been passed exactly <n> times.

       \fB-V\fR, \fB--show-versions\fR
           Show which versions of packages will be installed.

           This corresponds to the configuration option
           \fBAptitude::CmdLine::Show-Versions\fR.

       \fB-v\fR, \fB--verbose\fR
           Causes some commands (for instance, \fBshow\fR) to display extra
           information. This may be supplied multiple times to get more and
           more information.

           This corresponds to the configuration option
           \fBAptitude::CmdLine::Verbose\fR.

       \fB--version\fR
           Display the version of aptitude and some information about how it
           was compiled.

       \fB--visual-preview\fR
           When installing or removing packages from the command line, instead
           of displaying the usual prompt, start up the visual interface and
           display its preview screen.

       \fB-w\fR <width>, \fB--width\fR <width>
           Specify the display width which should be used for output from the
           \fBsearch\fR command (by default, the terminal width is used).

           This corresponds to the configuration option
           \fBAptitude::CmdLine::Package-Display-Width\fR

       \fB-y\fR, \fB--assume-yes\fR
           When a yes/no prompt would be presented, assume that the user
           entered "yes". In particular, suppresses the prompt that appears
           when installing, upgrading, or removing packages. Prompts for
           "dangerous" actions, such as removing essential packages, will
           still be displayed. This option overrides \fB-P\fR.

           This corresponds to the configuration option
           \fBAptitude::CmdLine::Assume-Yes\fR.

       \fB-Z\fR
           Show how much disk space will be used or freed by the individual
           packages being installed, upgraded, or removed.

           This corresponds to the configuration option
           \fBAptitude::CmdLine::Show-Size-Changes\fR.

       The following options apply to the visual mode of the program, but are
       primarily for internal use; you generally won't need to use them
       yourself.

       \fB-S\fR <fname>
           Loads the extended state information from <fname> instead of the
           standard state file.

       \fB-u\fR
           Begins updating the package lists as soon as the program starts.
           You cannot use this option and \fB-i\fR at the same time.

       \fB-i\fR
           Displays a download preview when the program starts (equivalent to
           starting the program and immediately pressing "g"). You cannot use
           this option and "\fB-u\fR" at the same time.

ENVIRONMENT
       \fBHOME\fR
           If $HOME/.aptitude exists, aptitude will store its configuration
           file in $HOME/.aptitude/config. Otherwise, it will look up the
           current user's home directory using getpwuid(2) and place its
           configuration file there.

       \fBPAGER\fR
           If this environment variable is set, aptitude will use it to
           display changelogs when "\fBaptitude changelog\fR" is invoked. If
           not set, it defaults to \fBmore\fR.

       \fBTMP\fR
           If \fBTMPDIR\fR is unset, aptitude will store its temporary files
           in \fBTMP\fR if that variable is set. Otherwise, it will store them
           in /tmp.

       \fBTMPDIR\fR

           aptitude will store its temporary files in the directory indicated
           by this environment variable. If \fBTMPDIR\fR is not set, then
           \fBTMP\fR will be used; if \fBTMP\fR is also unset, then aptitude
           will use /tmp.

SEE ALSO
       apt-get(8), apt(8), /usr/share/doc/aptitude/html/<lang>/index.html from
       the package aptitude-doc-<lang>

AUTHOR
       Daniel Burrows <dburrows@debian.org>
           Author.

COPYRIGHT
       This manual page is free software; you can redistribute it and/or
       modify it under the terms of the GNU General Public License as
       published by the Free Software Foundation; either version 2 of the
       License, or (at your option) any later version.

       This manual page is distributed in the hope that it will be useful, but
       WITHOUT ANY WARRANTY; without even the implied warranty of
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
       General Public License for more details.

       You should have received a copy of the GNU General Public License along
       with this program; if not, write to the Free Software Foundation, Inc.,
       51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

                                  03/14/2007                       APTITUDE(8)