Provided by: aptitude-common_0.8.10-6ubuntu1_all 
NAME
aptitude - high-level interface to the package manager
SYNOPSIS
aptitude [<options>...] {autoclean | clean | forget-new | keep-all | update}
aptitude [<options>...] {full-upgrade | safe-upgrade} [<packages>...]
aptitude [<options>...] {build-dep | build-depends | changelog | download | forbid-version
| hold | install | markauto | purge | reinstall | remove | show | showsrc |
source | unhold | unmarkauto | versions} <packages>...
aptitude extract-cache-subset <output-directory> <packages>...
aptitude [<options>...] search <patterns>...
aptitude [<options>...] {add-user-tag | remove-user-tag} <tag> <packages>...
aptitude [<options>...] {why | why-not} [<patterns>...] <package>
aptitude [-S <fname>] [--autoclean-on-startup | --clean-on-startup | -i | -u]
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 (“-”) 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:
install
Install one or more packages. The packages should be listed after the “install”
command; if a package name contains a tilde character (“~”) or a question mark (“?”),
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 “=<version>” to the package
name: for instance, “aptitude install apt=0.3.1”. Similarly, to select a package from
a particular archive, append “/<archive>” to the package name: for instance, “aptitude
install apt/experimental”. You cannot specify both an archive and a version for a
package.
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, aptitude remove wesnoth+ will install
wesnoth, not remove it. The following override specifiers are available:
<package>+
Install <package>.
If the package was not installed, it is marked as manually installed, and the
dependencies newly installed are marked with the automatic flag. If the package or
the dependencies were already installed, the automatic flag is preserved. See the
section about automatic installations in the documentation for more information.
<package>+M
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>-
Remove <package>.
<package>_
Purge <package>: remove it and all its associated configuration and data files.
<package>=
Place <package> on hold: cancel any active installation, upgrade, or removal, and
prevent this package from being automatically upgraded in the future.
<package>:
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>&M
Mark <package> as having been automatically installed.
<package>&m
Mark <package> as having been manually installed.
<package>&BD
Install the build-dependencies of a <package>.
As a special case, “install” with no arguments will act on any stored/pending actions.
Note
Once you enter Y at the final confirmation prompt, the “install” command will
modify aptitude's stored information about what actions to perform. Therefore, if
you issue (e.g.) the command “aptitude install foo bar” on packages previously
uninstalled, and then the installation fails once aptitude has started downloading
and installing packages, you will need to run “aptitude remove foo bar” to go back
to the previous state (and possibly undo installations or upgrades to other
packages that were affected by the “install” action).
remove, purge, reinstall
These commands are the same as “install”, but apply the named action to all packages
given on the command line for which it is not overridden.
For instance, “aptitude remove '~ndeity'” will remove all packages whose name contains
“deity”.
build-depends, build-dep
Satisfy the build-dependencies of a package. Each package name may be a source
package, in which case the build dependencies of that source package are installed;
otherwise, binary packages are found in the same way as for the “install” command, and
the build-dependencies of the source packages that build those binary packages are
satisfied.
If the command-line parameter --arch-only is present, only architecture-dependent
build dependencies (i.e., not Build-Depends-Indep or Build-Conflicts-Indep) will be
obeyed.
markauto, unmarkauto
Mark packages as automatically installed or manually installed, respectively. Packages
are specified in exactly the same way as for the “install” command. For instance,
“aptitude markauto '~slibs'” will mark all packages in the “libs” 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.
hold, unhold, keep
Mark packages to be on hold, remove this property, or set to keep in the current
state. Packages are specified in exactly the same way as for the “install” command.
For instance, “aptitude hold '~e^dpkg$'” will mark all packages coming from the source
package “dpkg” to be on hold.
The difference between hold and keep is that hold will cause a package to be ignored
by future safe-upgrade or full-upgrade commands, while keep merely cancels any
scheduled actions on the package. unhold will allow a package to be upgraded by
future safe-upgrade or full-upgrade commands, without otherwise altering its state.
keep-all
Cancels all scheduled actions on all packages; any packages whose sticky state
indicates an installation, removal, or upgrade will have this sticky state cleared.
forget-new
Forgets all internal information about what packages are “new” (equivalent to pressing
“f” when in visual mode).
This command accepts package names or patterns as arguments. If the string contains a
tilde character (“~”) or a question mark (“?”), it will be treated as a search pattern
and every package matching the pattern will be considered (see the section “Search
Patterns” in the aptitude reference manual).
forbid-version
Forbid a package from being upgraded to a particular version, while allowing automatic
upgrades to future versions. This is useful for example to avoid a known broken
version of a package, without having to set and clear manual holds.
By default, aptitude will select the forbidden version to be the one which the package
would normally be upgraded (the candidate version). This may be overridden by
appending “=<version>” to the package name: for instance, “aptitude forbid-version
vim=1.2.3.broken-4”.
To revert the action, “aptitude install <package>” will remove the ban. To remove the
forbidden version without installing the candidate version, the current version should
be appended: “install <package>=<version>”.
update
Updates the list of available packages from the apt sources (this is equivalent to
“apt-get update”)
safe-upgrade
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 may be installed to resolve dependencies unless the --no-new-installs
command-line option is supplied.
If no <package>s are listed on the command line, aptitude will attempt to upgrade
every package that can be upgraded. Otherwise, aptitude will attempt to upgrade only
the packages which it is instructed to upgrade. The <package>s can be extended with
suffixes in the same manner as arguments to aptitude install, so you can also give
additional instructions to aptitude here; for instance, aptitude safe-upgrade bash
dash- will attempt to upgrade the bash package and remove the dash package.
It is sometimes necessary to remove one package in order to upgrade another; this
command is not able to upgrade packages in such situations. Use the full-upgrade
command to upgrade as many packages as possible.
full-upgrade
Upgrades installed packages to their most recent version, removing or installing
packages as necessary. It also installs new Essential or Required packages. This
command is less conservative than safe-upgrade and thus more likely to perform
unwanted actions. However, it is capable of upgrading packages that safe-upgrade
cannot upgrade.
If no <package>s are listed on the command line, aptitude will attempt to upgrade
every package that can be upgraded. Otherwise, aptitude will attempt to upgrade only
the packages which it is instructed to upgrade. The <package>s can be extended with
suffixes in the same manner as arguments to aptitude install, so you can also give
additional instructions to aptitude here; for instance, aptitude full-upgrade bash
dash- will attempt to upgrade the bash package and remove the dash package.
Note
This command was originally named dist-upgrade for historical reasons, and
aptitude still recognizes dist-upgrade as a synonym for full-upgrade.
search
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,
“aptitude search '~N' edit” will list all “new” packages and all packages whose name
contains “edit”. For more information on search patterns, see the section “Search
Patterns” in the aptitude reference manual.
Note
In the example above, “aptitude search '~N' edit” has two arguments after search
and thus is searching for two patterns: “~N” and “edit”. As described in the
search pattern reference, a single pattern composed of two sub-patterns separated
by a space (such as “~N edit”) matches only if both patterns match. Thus, the
command “aptitude search '~N edit'” will only show “new” packages whose name
contains “edit”.
Unless you pass the -F option, the output of aptitude search 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 p, meaning that
no trace of the package exists on the system, c, meaning that the package was deleted
but its configuration files remain on the system, i, meaning that the package is
installed, and v, 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 i, meaning that the package will be
installed, d, meaning that the package will be deleted, and p, meaning that the
package and its configuration files will be removed. If the third character is A, 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. To customize the output of
search, see the command-line options -F and --sort.
show
Displays detailed information about one or more packages. If a package name contains a
tilde character (“~”) or a question mark (“?”), 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 -v is present on the
command-line), information about all versions of the package is displayed. Otherwise,
information about the “candidate version” (the version that “aptitude install” would
download) is displayed.
You can display information about a different version of the package by appending
=<version> to the package name; you can display the version from a particular archive
or release by appending /<archive> or /<release> to the package name: for instance,
/unstable or /sid. 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.
showsrc
Displays detailed information about one or more source packages.
This is a thin wrapper over apt(8).
source
Downloads one or more source packages.
This is a thin wrapper over apt(8).
versions
Displays the versions of the packages listed on the command-line.
$ aptitude versions wesnoth
p 1:1.4.5-1 100
p 1:1.6.5-1 unstable 500
p 1:1.7.14-1 experimental 1
Each version is listed on a separate line. The leftmost three characters indicate the
current state, planned state (if any), and whether the package was automatically
installed; for more information on their meanings, see the documentation of aptitude
search. To the right of the version number you can find the releases from which the
version is available, and the pin priority of the version.
If a package name contains a tilde character (“~”) or a question mark (“?”), it will
be treated as a search pattern and all matching versions will be displayed (see the
section “Search Patterns” in the aptitude reference manual). This means that, for
instance, aptitude versions '~i' will display all the versions that are currently
installed on the system and nothing else, not even other versions of the same
packages.
$ aptitude versions '~nexim4-daemon-light'
Package exim4-daemon-light:
i 4.71-3 100
p 4.71-4 unstable 500
Package exim4-daemon-light-dbg:
p 4.71-4 unstable 500
If the input is a search pattern, or if more than one package's versions are to be
displayed, aptitude will automatically group the output by package, as shown above.
You can disable this via --group-by=none, in which case aptitude will display a single
list of all the versions that were found and automatically include the package name in
each output line:
$ aptitude versions --group-by=none '~nexim4-daemon-light'
i exim4-daemon-light 4.71-3 100
p exim4-daemon-light 4.71-4 unstable 500
p exim4-daemon-light-dbg 4.71-4 unstable 500
To disable the package name, pass --show-package-names=never:
$ aptitude versions --show-package-names=never --group-by=none '~nexim4-daemon-light'
i 4.71-3 100
p 4.71-4 unstable 500
p 4.71-4 unstable 500
In addition to the above options, the information printed for each version can be
controlled by the command-line option -F. The order in which versions are displayed
can be controlled by the command-line option --sort. To prevent aptitude from
formatting the output into columns, use --disable-columns.
add-user-tag, remove-user-tag
Adds a user tag to or removes a user tag from the selected group of packages. If a
package name contains a tilde (“~”) or question mark (“?”), it is treated as a search
pattern and the tag is added to or removed from all the packages that match the
pattern (see the section “Search Patterns” in the aptitude reference manual).
User tags are arbitrary strings associated with a package. They can be used with the
?user-tag(<tag>) search term, which will select all the packages that have a user tag
matching <tag>.
why, why-not
Explains the reason that a particular package should or cannot be installed on the
system.
This command searches for packages that require or conflict with the given package. It
displays a sequence of dependencies leading to the target package, along with a note
indicating the installed state of each package in the dependency chain:
$ aptitude why kdepim
i nautilus-data Recommends nautilus
i A nautilus Recommends desktop-base (>= 0.2)
i A desktop-base Suggests gnome | kde | xfce4 | wmaker
p kde Depends kdepim (>= 4:3.4.3)
The command why finds a dependency chain that installs the package named on the
command line, as above. Note that the dependency that aptitude produced in this case
is only a suggestion. This is because no package currently installed on this computer
depends on or recommends the kdepim package; if a stronger dependency were available,
aptitude would have displayed it.
In contrast, why-not finds a dependency chain leading to a conflict with the target
package:
$ aptitude why-not textopo
i ocaml-core Depends ocamlweb
i A ocamlweb Depends tetex-extra | texlive-latex-extra
i A texlive-latex-extra Conflicts textopo
If one or more <pattern>s are present (in addition to the mandatory last argument,
which should be a valid <package> name), then aptitude will begin its search at these
patterns. That is, the first package in the chain it prints to explain why <package>
is or is not installed, will be a package matching the pattern in question. The
patterns are considered to be package names unless they contain a tilde character
(“~”) or a question mark (“?”), in which case they are treated as search patterns (see
the section “Search Patterns” in the aptitude reference manual).
If no patterns are present, then aptitude will search for dependency chains beginning
at manually installed packages. This effectively shows the packages that have caused
or would cause a given package to be installed.
Note
aptitude why does not perform full dependency resolution; it only displays direct
relationships between packages. For instance, if A requires B, C requires D, and B
and C conflict, “aptitude why-not D” will not produce the answer “A depends on B,
B conflicts with C, and D depends on C”.
By default aptitude outputs only the “most installed, strongest, tightest, shortest”
dependency chain. That is, it looks for a chain that only contains packages which are
installed or will be installed; it looks for the strongest possible dependencies under
that restriction; it looks for chains that avoid ORed dependencies and Provides; and
it looks for the shortest dependency chain meeting those criteria. These rules are
progressively weakened until a match is found.
If the verbosity level is 1 or more, then all the explanations aptitude can find will
be displayed, in inverse order of relevance. If the verbosity level is 2 or more, a
truly excessive amount of debugging information will be printed to standard output.
This command returns 0 if successful, 1 if no explanation could be constructed, and -1
if an error occurred.
clean
Removes all previously downloaded .deb files from the package cache directory (usually
/var/cache/apt/archives).
autoclean
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.
changelog
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 “aptitude
install” is downloaded. You can select a particular version of a package by appending
=<version> to the package name; you can select the version from a particular archive
or release by appending /<archive> or /<release> to the package name (for instance,
/unstable or /sid).
download
Downloads the .deb file for the given package to the current directory.
This is a thin wrapper over apt(8).
extract-cache-subset
Copy the apt configuration directory (/etc/apt) and a subset of the package database
to the specified directory. If no packages are listed, the entire package database is
copied; otherwise only the entries corresponding to the named packages are copied.
Each package name may be a search pattern, and all the packages matching that pattern
will be selected (see the section “Search Patterns” in the aptitude reference manual).
Any existing package database files in the output directory will be overwritten.
Dependencies in binary package stanzas will be rewritten to remove references to
packages not in the selected set.
help
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.
--add-user-tag <tag>
For full-upgrade, safe-upgrade, forbid-version, hold, install, keep-all, markauto,
unmarkauto, purge, reinstall, remove, unhold, and unmarkauto: add the user tag <tag>
to all packages that are installed, removed, or upgraded by this command as if with
the add-user-tag command.
--add-user-tag-to <tag>,<pattern>
For full-upgrade, safe-upgrade, forbid-version, hold, install, keep-all, markauto,
unmarkauto, purge, reinstall, remove, unhold, and unmarkauto: add the user tag <tag>
to all packages that match <pattern> as if with the add-user-tag command. The pattern
is a search pattern as described in the section “Search Patterns” in the aptitude
reference manual.
For instance, aptitude safe-upgrade --add-user-tag-to "new-installs,?action(install)"
will add the tag new-installs to all the packages installed by the safe-upgrade
command.
--allow-new-upgrades
When the safe resolver is being used (i.e., --safe-resolver was passed, the action is
safe-upgrade, or Aptitude::Always-Use-Safe-Resolver is set to true), allow the
dependency resolver to install upgrades for packages regardless of the value of
Aptitude::Safe-Resolver::No-New-Upgrades.
--allow-new-installs
Allow the safe-upgrade command to install new packages; when the safe resolver is
being used (i.e., --safe-resolver was passed, the action is safe-upgrade, or
Aptitude::Always-Use-Safe-Resolver is set to true), allow the dependency resolver to
install new packages. This option takes effect regardless of the value of
Aptitude::Safe-Resolver::No-New-Installs.
--allow-untrusted
Install packages from untrusted sources without prompting. You should only use this if
you know what you are doing, as it could easily compromise your system's security.
--disable-columns
This option causes aptitude search and aptitude versions to output their results
without any special formatting. In particular: normally aptitude will add whitespace
or truncate search results in an attempt to fit its results into vertical “columns”.
With this flag, each line will be formed by replacing any format escapes in the format
string with the corresponding text; column widths will be ignored.
For instance, the first few lines of output from “aptitude search -F '%p %V'
--disable-columns libedataserver” might be:
disksearch 1.2.1-3
hp-search-mac 0.1.3
libbsearch-ruby 1.5-5
libbsearch-ruby1.8 1.5-5
libclass-dbi-abstractsearch-perl 0.07-2
libdbix-fulltextsearch-perl 0.73-10
As in the above example, --disable-columns is often useful in combination with a
custom display format set using the command-line option -F.
This corresponds to the configuration option Aptitude::CmdLine::Disable-Columns.
-D, --show-deps
For commands that will install or remove packages (install, full-upgrade, etc), show
brief explanations of automatic installations and removals.
This corresponds to the configuration option Aptitude::CmdLine::Show-Deps.
-d, --download-only
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 Aptitude::CmdLine::Download-Only.
-F <format>, --display-format <format>
Specify the format which should be used to display output from the search and versions
commands. For instance, passing “%p %v %V” for <format> will display a package's name,
followed by its currently installed version and its candidate version (see the section
“Customizing how packages are displayed” in the aptitude reference manual for more
information).
The command-line option --disable-columns is often useful in combination with -F.
For search, this corresponds to the configuration option
Aptitude::CmdLine::Package-Display-Format; for versions, this corresponds to the
configuration option Aptitude::CmdLine::Version-Display-Format.
-f
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 Aptitude::CmdLine::Fix-Broken.
--full-resolver
When package dependency problems are encountered, use the default “full” resolver to
solve them. Unlike the “safe” resolver activated by --safe-resolver, the full resolver
will happily remove packages to fulfill dependencies. It can resolve more situations
than the safe algorithm, but its solutions are more likely to be undesirable.
This option can be used to force the use of the full resolver even when
Aptitude::Always-Use-Safe-Resolver is true.
--group-by <grouping-mode>
Control how the versions command groups its output. The following values are
recognized:
• archive to group packages by the archive they occur in (“stable”, “unstable”,
etc). If a package occurs in several archives, it will be displayed in each of
them.
• auto to group versions by their package unless there is exactly one argument and
it is not a search pattern.
• none to display all the versions in a single list without any grouping.
• package to group versions by their package.
• source-package to group versions by their source package.
• source-version to group versions by their source package and source version.
This corresponds to the configuration option Aptitude::CmdLine::Versions-Group-By.
-h, --help
Display a brief help message. Identical to the help action.
--log-file=<file>
If <file> is a nonempty string, log messages will be written to it, except that if
<file> is “-”, the messages will be written to standard output instead. If this option
appears multiple times, the last occurrence is the one that will take effect.
This does not affect the log of installations that aptitude has performed
(/var/log/aptitude); the log messages written using this configuration include
internal program events, errors, and debugging messages. See the command-line option
--log-level to get more control over what gets logged.
This corresponds to the configuration option Aptitude::Logging::File.
--log-level=<level>, --log-level=<category>:<level>
--log-level=<level> causes aptitude to only log messages whose level is <level> or
higher. For instance, setting the log level to error will cause only messages at the
log levels error and fatal to be displayed; all others will be hidden. Valid log
levels (in descending order) are off, fatal, error, warn, info, debug, and trace. The
default log level is warn.
--log-level=<category>:<level> causes messages in <category> to only be logged if
their level is <level> or higher.
--log-level may appear multiple times on the command line; the most specific setting
is the one that takes effect, so if you pass --log-level=aptitude.resolver:fatal and
--log-level=aptitude.resolver.hints.match:trace, then messages in
aptitude.resolver.hints.parse will only be printed if their level is fatal, but all
messages in aptitude.resolver.hints.match will be printed. If you set the level of the
same category two or more times, the last setting is the one that will take effect.
This does not affect the log of installations that aptitude has performed
(/var/log/aptitude); the log messages written using this configuration include
internal program events, errors, and debugging messages. See the command-line option
--log-file to change where log messages go.
This corresponds to the configuration group Aptitude::Logging::Levels.
--log-resolver
Set some standard log levels related to the resolver, to produce logging output
suitable for processing with automated tools. This is equivalent to the command-line
options --log-level=aptitude.resolver.search:trace
--log-level=aptitude.resolver.search.tiers:info.
--no-new-installs
Prevent safe-upgrade from installing any new packages; when the safe resolver is being
used (i.e., --safe-resolver was passed or Aptitude::Always-Use-Safe-Resolver is set to
true), forbid the dependency resolver from installing new packages. This option takes
effect regardless of the value of Aptitude::Safe-Resolver::No-New-Installs.
This mimics the historical behavior of apt-get upgrade.
--no-new-upgrades
When the safe resolver is being used (i.e., --safe-resolver was passed or
Aptitude::Always-Use-Safe-Resolver is set to true), forbid the dependency resolver
from installing upgrades for packages regardless of the value of
Aptitude::Safe-Resolver::No-New-Upgrades.
--no-show-resolver-actions
Do not display the actions performed by the “safe” resolver, overriding any
configuration option or earlier --show-resolver-actions.
-O <order>, --sort <order>
Specify the order in which output from the search and versions commands should be
displayed. For instance, passing “installsize” 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).
Prepending the order keyword with a tilde character (~) reverses the order from
ascending to descending.
The default sort order is name,version.
-o <key>=<value>
Set a configuration file option directly; for instance, use -o
Aptitude::Log=/tmp/my-log 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.
-P, --prompt
Always display a prompt before downloading, installing or removing packages, even when
no actions other than those explicitly requested will be performed.
This corresponds to the configuration option Aptitude::CmdLine::Always-Prompt.
--purge-unused
If Aptitude::Delete-Unused is set to “true” (its default), then in addition to
removing each package that is no longer required by any installed package, aptitude
will also purge them, removing their configuration files and perhaps other important
data. For more information about which packages are considered to be “unused”, see the
section “Managing Automatically Installed Packages” in the aptitude reference manual.
THIS OPTION CAN CAUSE DATA LOSS! DO NOT USE IT UNLESS YOU KNOW WHAT YOU ARE DOING!
This corresponds to the configuration option Aptitude::Purge-Unused.
-q[=<n>], --quiet[=<n>]
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 -y when -q is supplied more than once.
The optional =<n> 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 -q
had been passed exactly <n> times.
-R, --without-recommends
Do not treat recommendations as dependencies when installing new packages (this
overrides settings in /etc/apt/apt.conf and ~/.aptitude/config). Packages previously
installed due to recommendations will not be removed.
This corresponds to the pair of configuration options APT::Install-Recommends and
APT::AutoRemove::RecommendsImportant.
-r, --with-recommends
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 APT::Install-Recommends
--remove-user-tag <tag>
For full-upgrade, safe-upgrade forbid-version, hold, install, keep-all, markauto,
unmarkauto, purge, reinstall, remove, unhold, and unmarkauto: remove the user tag
<tag> from all packages that are installed, removed, or upgraded by this command as if
with the add-user-tag command.
--remove-user-tag-from <tag>,<pattern>
For full-upgrade, safe-upgrade forbid-version, hold, install, keep-all, markauto,
unmarkauto, purge, reinstall, remove, unhold, and unmarkauto: remove the user tag
<tag> from all packages that match <pattern> as if with the remove-user-tag command.
The pattern is a search pattern as described in the section “Search Patterns” in the
aptitude reference manual.
For instance, aptitude safe-upgrade --remove-user-tag-from
"not-upgraded,?action(upgrade)" will remove the not-upgraded tag from all packages
that the safe-upgrade command is able to upgrade.
-s, --simulate
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 Aptitude::Simulate.
--safe-resolver
When package dependency problems are encountered, use a “safe” algorithm to solve
them. This resolver attempts to preserve as many of your choices as possible; it will
never remove a package or install a version of a package other than the package's
default candidate version. It is the same algorithm used in safe-upgrade; indeed,
aptitude --safe-resolver full-upgrade is equivalent to aptitude safe-upgrade. Because
safe-upgrade always uses the safe resolver, it does not accept the --safe-resolver
flag.
This option is equivalent to setting the configuration variable
Aptitude::Always-Use-Safe-Resolver to true.
--schedule-only
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 aptitude
install with no arguments. This is equivalent to making the corresponding selections
in visual mode, then exiting the program normally.
For instance, aptitude --schedule-only install evolution will schedule the evolution
package for later installation.
--show-package-names <when>
Controls when the versions command shows package names. The following settings are
allowed:
• always: display package names every time that aptitude versions runs.
• auto: display package names when aptitude versions runs if the output is not
grouped by package, and either there is a pattern-matching argument or there is
more than one argument.
• never: never display package names in the output of aptitude versions.
This option corresponds to the configuration item
Aptitude::CmdLine::Versions-Show-Package-Names.
--show-resolver-actions
Display the actions performed by the “safe” resolver and by safe-upgrade.
When executing the command safe-upgrade or when the option --safe-resolver is present,
aptitude will display a summary of the actions performed by the resolver before
printing the installation preview. This is equivalent to the configuration option
Aptitude::Safe-Resolver::Show-Resolver-Actions.
--show-summary[=<MODE>]
Changes the behavior of “aptitude why” to summarize each dependency chain that it
outputs, rather than displaying it in long form. If this option is present and <MODE>
is not “no-summary”, chains that contain Suggests dependencies will not be displayed:
combine --show-summary with -v to see a summary of all the reasons for the target
package to be installed.
<MODE> can be any one of the following:
1. no-summary: don't show a summary (the default behavior if --show-summary is not
present).
2. first-package: display the first package in each chain. This is the default value
of <MODE> if it is not present.
3. first-package-and-type: display the first package in each chain, along with the
strength of the weakest dependency in the chain.
4. all-packages: briefly display each chain of dependencies leading to the target
package.
5. all-packages-with-dep-versions: briefly display each chain of dependencies leading
to the target package, including the target version of each dependency.
This option corresponds to the configuration item Aptitude::CmdLine::Show-Summary; if
--show-summary is present on the command-line, it will override
Aptitude::CmdLine::Show-Summary.
Example 12. Usage of --show-summary --show-summary used with -v to display all the
reasons a package is installed:
$ aptitude -v --show-summary why foomatic-db
Packages requiring foomatic-db:
cupsys-driver-gutenprint
foomatic-db-engine
foomatic-db-gutenprint
foomatic-db-hpijs
foomatic-filters-ppds
foomatic-gui
kde
printconf
wine
$ aptitude -v --show-summary=first-package-and-type why foomatic-db
Packages requiring foomatic-db:
[Depends] cupsys-driver-gutenprint
[Depends] foomatic-db-engine
[Depends] foomatic-db-gutenprint
[Depends] foomatic-db-hpijs
[Depends] foomatic-filters-ppds
[Depends] foomatic-gui
[Depends] kde
[Depends] printconf
[Depends] wine
$ aptitude -v --show-summary=all-packages why foomatic-db
Packages requiring foomatic-db:
cupsys-driver-gutenprint D: cups-driver-gutenprint D: cups R: foomatic-filters R: foomatic-db-engine D: foomatic-db
foomatic-filters-ppds D: foomatic-filters R: foomatic-db-engine D: foomatic-db
kde D: kdeadmin R: system-config-printer-kde D: system-config-printer R: hal-cups-utils D: cups R: foomatic-filters R: foomatic-db-engine D: foomatic-db
wine D: libwine-print D: cups-bsd R: cups R: foomatic-filters R: foomatic-db-engine D: foomatic-db
foomatic-db-engine D: foomatic-db
foomatic-db-gutenprint D: foomatic-db
foomatic-db-hpijs D: foomatic-db
foomatic-gui D: python-foomatic D: foomatic-db-engine D: foomatic-db
printconf D: foomatic-db
$ aptitude -v --show-summary=all-packages-with-dep-versions why foomatic-db
Packages requiring foomatic-db:
cupsys-driver-gutenprint D: cups-driver-gutenprint (>= 5.0.2-4) D: cups (>= 1.3.0) R: foomatic-filters (>= 4.0) R: foomatic-db-engine (>= 4.0) D: foomatic-db (>= 20090301)
foomatic-filters-ppds D: foomatic-filters R: foomatic-db-engine (>= 4.0) D: foomatic-db (>= 20090301)
kde D: kdeadmin (>= 4:3.5.5) R: system-config-printer-kde (>= 4:4.2.2-1) D: system-config-printer (>= 1.0.0) R: hal-cups-utils D: cups R: foomatic-filters (>= 4.0) R: foomatic-db-engine (>= 4.0) D: foomatic-db (>= 20090301)
wine D: libwine-print (= 1.1.15-1) D: cups-bsd R: cups R: foomatic-filters (>= 4.0) R: foomatic-db-engine (>= 4.0) D: foomatic-db (>= 20090301)
foomatic-db-engine D: foomatic-db
foomatic-db-gutenprint D: foomatic-db
foomatic-db-hpijs D: foomatic-db
foomatic-gui D: python-foomatic (>= 0.7.9.2) D: foomatic-db-engine D: foomatic-db (>= 20090301)
printconf D: foomatic-db
--show-summary used to list a chain on one line:
$ aptitude --show-summary=all-packages why aptitude-gtk libglib2.0-data
Packages requiring libglib2.0-data:
aptitude-gtk D: libglib2.0-0 R: libglib2.0-data
-t <release>, --target-release <release>
Set the release from which packages should be installed. For instance, “aptitude -t
experimental ...” will install packages from the experimental distribution unless you
specify otherwise.
This will affect the default candidate version of packages according to the rules
described in apt_preferences(5).
This corresponds to the configuration item APT::Default-Release.
-V, --show-versions
Show which versions of packages will be installed.
This corresponds to the configuration option Aptitude::CmdLine::Show-Versions.
-v, --verbose
Causes some commands (for instance, show) to display extra information. This may be
supplied multiple times to get more and more information.
This corresponds to the configuration option Aptitude::CmdLine::Verbose.
--version
Display the version of aptitude and some information about how it was compiled.
--visual-preview
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.
-W, --show-why
In the preview displayed before packages are installed or removed, show which manually
installed package requires each automatically installed package. For instance:
$ aptitude --show-why install mediawiki
...
The following NEW packages will be installed:
libapache2-mod-php5{a} (for mediawiki) mediawiki php5{a} (for mediawiki)
php5-cli{a} (for mediawiki) php5-common{a} (for mediawiki)
php5-mysql{a} (for mediawiki)
When combined with -v or a non-zero value for Aptitude::CmdLine::Verbose, this
displays the entire chain of dependencies that lead each package to be installed. For
instance:
$ aptitude -v --show-why install libdb4.2-dev
The following NEW packages will be installed:
libdb4.2{a} (libdb4.2-dev D: libdb4.2) libdb4.2-dev
The following packages will be REMOVED:
libdb4.4-dev{a} (libdb4.2-dev C: libdb-dev P<- libdb-dev)
This option will also describe why packages are being removed, as shown above. In this
example, libdb4.2-dev conflicts with libdb-dev, which is provided by libdb-dev.
This argument corresponds to the configuration option Aptitude::CmdLine::Show-Why and
displays the same information that is computed by aptitude why and aptitude why-not.
-w <width>, --width <width>
Specify the display width which should be used for output from the search and versions
commands (in the command line).
By default and when the output is seen directly in a terminal, the terminal width is
used. When the output is redirected or piped, a very large "unlimited" line width is
used, and this option is ignored.
This corresponds to the configuration option Aptitude::CmdLine::Package-Display-Width
-y, --assume-yes
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 -P.
This corresponds to the configuration option Aptitude::CmdLine::Assume-Yes.
-Z
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 Aptitude::CmdLine::Show-Size-Changes.
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.
--autoclean-on-startup
Deletes old downloaded files when the program starts (equivalent to starting the
program and immediately selecting Actions → Clean obsolete files). You cannot use this
option and “--clean-on-startup”, “-i”, or “-u” at the same time.
--clean-on-startup
Cleans the package cache when the program starts (equivalent to starting the program
and immediately selecting Actions → Clean package cache). You cannot use this option
and “--autoclean-on-startup”, “-i”, or “-u” at the same time.
-i
Displays a download preview when the program starts (equivalent to starting the
program and immediately pressing “g”). You cannot use this option and
“--autoclean-on-startup”, “--clean-on-startup”, or “-u” at the same time.
-S <fname>
Loads the extended state information from <fname> instead of the standard state file.
-u
Begins updating the package lists as soon as the program starts. You cannot use this
option and “--autoclean-on-startup”, “--clean-on-startup”, or “-i” at the same time.
ENVIRONMENT
HOME
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.
PAGER
If this environment variable is set, aptitude will use it to display changelogs when
“aptitude changelog” is invoked. If not set, it defaults to more.
TMP
If TMPDIR is unset, aptitude will store its temporary files in TMP if that variable is
set. Otherwise, it will store them in /tmp.
TMPDIR
aptitude will store its temporary files in the directory indicated by this environment
variable. If TMPDIR is not set, then TMP will be used; if TMP is also unset, then
aptitude will use /tmp.
FILES
/var/lib/aptitude/pkgstates
The file in which stored package states and some package flags are stored.
/etc/apt/apt.conf, /etc/apt/apt.conf.d/*, ~/.aptitude/config
The configuration files for aptitude. ~/.aptitude/config overrides /etc/apt/apt.conf.
See apt.conf(5) for documentation of the format and contents of these files.
SEE ALSO
apt-get(8), apt(8), /usr/share/doc/aptitude/html/<lang>/index.html from the package
aptitude-doc-<lang>
AUTHORS
Daniel Burrows <dburrows@debian.org>
Main author of the document.
Manuel A. Fernandez Montecelo <mafm@debian.org>
Main maintainer after Daniel Burrows, documentation about new features, corrections
and formatting.
COPYRIGHT
Copyright 2004-2011 Daniel Burrows.
Copyright 2014-2016 Manuel A. Fernandez Montecelo
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.