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).

パッケージの特定バージョンを選択するには、「aptitude install apt=0.3.1」というように、パッケージ名に「=バージョン」を付記してください。同様に、特定のアーカイブからパッケージを選択するには、「aptitude install apt/experimental」というように、パッケージ名に「/アーカイブ」を付記してください。

必ずしも、コマンドラインに連ねられたパッケージすべてがインストール対象でなければいけないわけではありません。パッケージ名に「上書き指定子」を付記すると、そのパッケージに対して aptitude に別のことをさせることが可能です。例えば、aptitude remove wesnoth+ とすると、wesnoth を削除ではなくインストールできます。以下の上書き指定子が利用可能です。

特別な場合として、引数を与えずに「install」を実行すると、保存されているアクションや実行されていないアクションが実行されます。

	注記
	最終確認用のプロンプトで一度 Y を入力すると、「install」コマンドは、実行するアクションに関する aptitude の保存情報を変更します。したがって、例えばコマンド「aptitude install foo bar」を発行し、aptitude がダウンロードやインストールを開始した時点でインストールを破棄する場合、その命令を取り消すために「aptitude remove foo bar」を実行する必要があります。

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. 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.

例えば、「aptitude remove '~ndeity'」とすると、「deity」を名前に含むパッケージがすべて削除されます。

それぞれ、自動的にインストールされた、および手動でインストールされたという印をパッケージに添付します。パッケージの指定は「install」コマンドとまったく同じ方法で行います。例えば「aptitude markauto '~slibs'」を実行すると、「libs」セクションのパッケージすべてに、自動的にインストールされたという印が添付されます。

自動的にインストールしたパッケージについてのさらに詳しい情報は、aptitude リファレンスマニュアルの「自動的にインストールしたパッケージの管理」セクションを参照してください。

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.

あるパッケージを特定のバージョンに更新するのを禁止します。これを用いると、aptitude を、そのバージョンへの更新は自動的に行わず、それ以降のバージョンへの更新は自動的に行うよう、aptitude に指示できます。デフォルトでは aptitude は、パッケージが通常更新されるバージョンを選択します。「aptitude forbid-version vim=1.2.3.broken-4」というように、パッケージ名に =バージョン を付記すると、この選択を上書きできます。

このコマンドは、手動でバージョンの固定を設定したり解除したりせずに、破損したパッケージバージョンを避けるのに便利です。禁止したものの、そのバージョンを本当に入れたくなった場合は、「install」コマンドでその禁止を解除できます。

apt 入手先から入手可能なパッケージの一覧を更新します (これは、「apt-get update」と等価です)。

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 packages 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 packages 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.

Upgrades installed packages to their most recent version, removing or installing packages as necessary. 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 packages 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 packages 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.

	注記
	This command was originally named dist-upgrade for historical reasons, and aptitude still recognizes dist-upgrade as a synonym for full-upgrade.

設定されていたアクションをすべてのパッケージについて取り消します。つまり、インストール・削除・更新といった面倒な状態をもったあらゆるパッケージから、そういった状態を取り除きます。

どのパッケージが「新規」かについての内部情報を消去します (ビジュアルモードで「f」を押すのと等価です)。

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.

注記

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」.

-F オプションを与えない場合、aptitude search の出力はこのようになります。

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

検索結果はそれぞれ異なる行に一覧表示されます。各行の第 1 文字はパッケージの現在の状態を示します。最もありふれた状態は、システムにパッケージが存在した形跡がないという意味の p、パッケージが削除されたがシステムに設定ファイルが残っているという意味の c、パッケージがインストールされているという意味の i、パッケージが仮想パッケージであるという意味の v です。第 2 文字は、パッケージに対して行うよう保存されたアクションを示します (アクションが存在する場合で、なければ空欄が表示されます)。最もありふれた状態は、パッケージがインストール予定であるという意味の i、パッケージが削除予定であるという意味の d、パッケージおよびその設定ファイルが削除予定であるという意味の p です。第 3 文字が A である場合、そのパッケージは自動的にインストールされたものです。

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.

Displays detailed information about one or more packages, listed following the search command. 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).

饒舌レベルが 1 以上の場合 (つまり、コマンドラインに -v が 1 つ以上与えられている場合)、そのパッケージのすべてのバージョンについて情報が表示されます。それ以外の場合は「バージョン候補」(「aptitude install」がダウンロードするバージョン) に関する情報が表示されます。

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.

饒舌レベルが 1 以上の場合、パッケージのアーキテクチャ・圧縮サイズ・ファイル名・md5sum の各フィールドが表示されます。饒舌レベルが 2 以上の場合、各アーカイブについて、そのアーカイブがもつ 1 つ以上の選択バージョンが一度ずつ表示されます。

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.

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.

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 patterns are present, then aptitude will begin its search at these patterns; that is, the first package in the chain it prints 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.

	注記
	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 occured.

以前ダウンロードした .deb ファイルをパッケージキャッシュディレクトリ (通常 /var/cache/apt/archives) から削除します。

もうダウンロードできない、キャッシュされたパッケージを削除します。これによって、完全に削除しないかぎりキャッシュが時間とともに肥大化してしまい制御できなくなる、という事態を防げます。

指定されたソースパッケージまたはバイナリパッケージの各々について、Debian パッケージ更新履歴をダウンロードして表示します。

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).

Downloads the .deb file for the given package to the current directory. If a package name contains a tilde character (「~」) or a question mark (「?」), it will be treated as a search pattern and all the matching packages will be downloaded (see the section 「Search Patterns」 in the aptitude reference manual).

By default, 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).

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.

利用可能なコマンドとオプションを簡潔にまとめて表示します。

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.

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.

When the safe resolver is being used (i.e., --safe-resolver was passed 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 the safe-upgrade command to install 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), allow the dependency resolver to install new packages. This option takes effect regardless of the value of Aptitude::Safe-Resolver::No-New-Installs.

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.

This option causes aptitude search and aptitude version 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 correponding 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.

For commands that will install or remove packages (install, full-upgrade, etc), show brief explanations of automatic installations and removals.

これは設定オプション Aptitude::CmdLine::Show-Deps に相当します。

必要に応じてパッケージをパッケージキャッシュにダウンロードしますが、インストールや削除はしません。デフォルトでは、パッケージキャッシュは /var/cache/apt/archives に保存されます。

これは設定オプション Aptitude::CmdLine::Download-Only に相当します。

Specify the format which should be used to display output from the search and version commands. For instance, passing 「%p %V %v」 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).

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.

コマンドラインで要求されたアクションを無視することになってもなお、破損パッケージの依存関係を修正しようとします。

これは設定項目 Aptitude::CmdLine::Fix-Broken に相当します。

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. The safe-upgrade command never uses the full resolver and does not accept the --full-resolver option.

Control how the versions command groups its output. The following values are recognized:

This corresponds to the configuration option Aptitude::CmdLine::Versions-Group-By.

簡潔なヘルプメッセージを表示します。help アクションと同一です。

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 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.

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.

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.

This corresponds to the configuration option Aptitude::CmdLine::Safe-Upgrade::No-New-Installs.

When the safe resolver is being used (i.e., --safe-resolver was passed or Aptitude::Always-Use-Safe-Resolver is set to true), allow the dependency resolver to install new packages regardless of the value of Aptitude::Safe-Resolver::No-New-Installs.

Do not display the actions performed by the 「safe」 resolver, overriding any configuration option or earlier --show-resolver-actions.

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).

The default sort order is name,version.

設定ファイルオプションを直接設定します。例えば -o Aptitude::Log=/tmp/my-log を用いると、aptitude のアクションを /tmp/my-log に記録できます。設定ファイルオプション�archive or r line will be formed by replacing any format escapes in the format string with the correponding 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.

For commands that will install or remove packages (install, full-upgrade, etc), show brief explanations of automatic installations and removals.

これは設定オプション Aptitude::CmdLine::Show-Deps に相当します。

必要に応じてパッケージをパッケージキャッシュにダウンロードしますが、インストールや削除はしません。デフォルトでは、パッケージキャッシュは /var/cache/apt/archives に保存されます。

これは設定オプション Aptitude::CmdLine::Download-Only に相当します。

Specify the format which should be used to display output from the search and version commands. For instance, passing 「%p %V %v」 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).

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.

コマンドラインで要求されたアクションを無視することになってもなお、破損パッケージの依存関係を修正しようとします。

これは設定項目 Aptitude::CmdLine::Fix-Broken に相当します。

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. The safe-upgrade command never uses the full resolver and does not accept the --full-resolver option.

Control how the versions command groups its output. The following values are recognized:

This corresponds to the configuration option Aptitude::CmdLine::Versions-Group-By.

簡潔なヘルプメッセージを表示します。help アクションと同一です。

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 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.

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.

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.

This corresponds to the configuration option Aptitude::CmdLine::Safe-Upgrade::No-New-Installs.

When the safe resolver is being used (i.e., --safe-resolver was passed or Aptitude::Always-Use-Safe-Resolver is set to true), allow the dependency resolver to install new packages regardless of the value of Aptitude::Safe-Resolver::No-New-Installs.

Do not display the actions performed by the 「safe」 resolver, overriding any configuration option or earlier --show-resolver-actions.

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).

The default sort order is name,version.

設定ファイルオプションを直接設定します。例えば -o Aptitude::Log=/tmp/my-log を用いると、aptitude のアクションを /tmp/my-log に記録できます。設定ファイルオプション�archive or r line will be formed by replacing any format escapes in the format string with the correponding 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.

For commands that will install or remove packages (install, full-upgrade, etc), show brief explanations of automatic installations and removals.

これは設定オプション Aptitude::CmdLine::Show-Deps に相当します。

必要に応じてパッケージをパッケージキャッシュにダウンロードしますが、インストールや削除はしません。デフォルトでは、パッケージキャッシュは /var/cache/apt/archives に保存されます。

これは設定オプション Aptitude::CmdLine::Download-Only に相当します。

Specify the format which should be used to display output from the search and version commands. For instance, passing 「%p %V %v」 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).

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.

コマンドラインで要求されたアクションを無視することになってもなお、破損パッケージの依存関係を修正しようとします。

これは設定項目 Aptitude::CmdLine::Fix-Broken に相当します。

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. The safe-upgrade command never uses the full resolver and does not accept the --full-resolver option.

Control how the versions command groups its output. The following values are recognized:

This corresponds to the configuration option Aptitude::CmdLine::Versions-Group-By.

簡潔なヘルプメッセージを表示します。help アクションと同一です。

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 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.

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.

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.

This corresponds to the configuration option Aptitude::CmdLine::Safe-Upgrade::No-New-Installs.

When the safe resolver is being used (i.e., --safe-resolver was passed or Aptitude::Always-Use-Safe-Resolver is set to true), allow the dependency resolver to install new packages regardless of the value of Aptitude::Safe-Resolver::No-New-Installs.

Do not display the actions performed by the 「safe」 resolver, overriding any configuration option or earlier --show-resolver-actions.

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).

The default sort order is name,version.