X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/c861c34804edcbe0644118dcf48c74fd552aea5a..f5c0ab925fdceb1bc0ef0e958cae7d0fafb28caf:/doc/apt-get.8.xml diff --git a/doc/apt-get.8.xml b/doc/apt-get.8.xml index 5fef807e2..785b4e9a8 100644 --- a/doc/apt-get.8.xml +++ b/doc/apt-get.8.xml @@ -1,13 +1,9 @@ -%aptent; - - -%aptverbatiment; - + %aptent; + %aptverbatiment; + %aptvendor; ]> @@ -18,7 +14,7 @@ &apt-email; &apt-product; - 2012-05-21T00:00:00Z + 2012-06-09T00:00:00Z @@ -38,7 +34,7 @@ Description apt-get is the command-line tool for handling packages, and may be considered the user's "back-end" to other tools using the APT - library. Several "front-end" interfaces exist, such as &dselect;, + library. Several "front-end" interfaces exist, such as &aptitude;, &synaptic; and &wajig;. Unless the , or option is given, one of the @@ -215,13 +211,10 @@ clean clears out the local repository of retrieved package files. It removes everything but the lock file from &cachedir;/archives/ and - &cachedir;/archives/partial/. When APT is used as a - &dselect; method, clean is run automatically. - Those who do not use dselect will likely want to run apt-get clean - from time to time to free up disk space. + &cachedir;/archives/partial/. - + (and the alias since 1.1) Like clean, autoclean clears out the local repository of retrieved package files. The difference is that it only removes package files that can no longer be downloaded, and are largely @@ -231,25 +224,36 @@ erased if it is set to off. - + (and the alias since 1.1) autoremove is used to remove packages that were automatically installed to satisfy dependencies for other packages and are now no longer needed. - changelog downloads a package changelog and displays - it through sensible-pager. The server name and base - directory is defined in the APT::Changelogs::Server - variable (e.g. packages.debian.org/changelogs for - Debian or changelogs.ubuntu.com/changelogs for - Ubuntu). - By default it displays the changelog for the version that is - installed. However, you can specify the same options as for - the command. - + changelog tries to download the + changelog of a package and displays it through + sensible-pager. By default it + displays the changelog for the version that is installed. + However, you can specify the same options as for the + command. + + Displays by default a deb822 formatted listing of + information about all data files (aka index targets) apt-get + update would download. Supports a + option to modify the output format as + well as accepts lines of the default output to filter the records + by. The command is mainly used as an interface for external tools + working with APT to get information as well as filenames for + downloaded files so they can use them as well instead of + downloading them again on their own. Detailed documentation is + omitted here and can instead be found in the source tree in + doc/acquire-additional-files.txt. + + + @@ -282,7 +286,7 @@ running APT for the first time; APT itself does not allow broken package dependencies to exist on a system. It is possible that a system's dependency structure can be so corrupt as to require manual intervention - (which usually means using &dselect; or dpkg --remove to eliminate some of + (which usually means using dpkg --remove to eliminate some of the offending packages). Use of this option together with may produce an error in some situations. Configuration Item: APT::Get::Fix-Broken. @@ -323,17 +327,15 @@ - No action; perform a simulation of events that would occur but do not - actually change the system. - Configuration Item: APT::Get::Simulate. - - Simulated runs performed as a user will automatically deactivate locking - (Debug::NoLocking), and if the option - APT::Get::Show-User-Simulation-Note is set - (as it is by default) a notice will also be displayed indicating that - this is only a simulation. Runs performed as root do not trigger either - NoLocking or the notice - superusers should know what they are doing - without further warnings from apt-get. + No action; perform a simulation of events that would occur + based on the current system state but do not actually change the + system. Locking will be disabled () + so the system state could change while apt-get is + running. Simulations can also be executed by non-root users which might + not have read access to all apt configuration distorting the simulation. + A notice expressing this warning is also shown by default for non-root + users (). + Configuration Item: APT::Get::Simulate. Simulated runs print out a series of lines, each representing a dpkg operation: configure (Conf), remove (Remv) @@ -372,7 +374,18 @@ by apt-get source --compile and how cross-builddependencies are satisfied. By default is it not set which means that the host architecture is the same as the build architecture (which is defined by APT::Architecture). - Configuration Item: APT::Get::Host-Architecture + Configuration Item: APT::Get::Host-Architecture. + + + + + + This option controls the activated build profiles for which + a source package is built by apt-get source --compile and + how build dependencies are satisfied. By default no build profile is active. + More than one build profile can be activated at a time by concatenating them + with a comma. + Configuration Item: APT::Build-Profiles. @@ -389,6 +402,18 @@ Configuration Item: APT::Ignore-Hold. + + Allow installing new packages when used in + conjunction with upgrade. This is useful if + the update of a installed package requires new dependencies to be + installed. Instead of holding the package back upgrade + will upgrade the package and install the new dependencies. Note that + upgrade with this option will never remove packages, + only allow adding new ones. + Configuration Item: APT::Get::Upgrade-Allow-New. + + + Do not upgrade packages; when used in conjunction with install, no-upgrade will prevent packages on the command line @@ -404,12 +429,36 @@ Configuration Item: APT::Get::Only-Upgrade. + + This is a dangerous option that will cause apt to continue + without prompting if it is doing downgrades. It + should not be used except in very special situations. Using + it can potentially destroy your system! + Configuration Item: APT::Get::allow-downgrades. Introduced in APT 1.1. + + + + Force yes; this is a dangerous option that will cause apt to continue + without prompting if it is removing essentials. It + should not be used except in very special situations. Using + it can potentially destroy your system! + Configuration Item: APT::Get::allow-remove-essential. Introduced in APT 1.1. + + + + Force yes; this is a dangerous option that will cause apt to continue + without prompting if it is changing held packages. It + should not be used except in very special situations. Using + it can potentially destroy your system! + Configuration Item: APT::Get::allow-change-held-packages. Introduced in APT 1.1. + + Force yes; this is a dangerous option that will cause apt to continue without prompting if it is doing something potentially harmful. It should not be used except in very special situations. Using force-yes can potentially destroy your system! - Configuration Item: APT::Get::force-yes. + Configuration Item: APT::Get::force-yes. This is deprecated and replaced by , , in 1.1. @@ -504,11 +553,31 @@ - Ignore if packages can't be authenticated and don't prompt about it. - This is useful for tools like pbuilder. - Configuration Item: APT::Get::AllowUnauthenticated. + Ignore if packages can't be authenticated and don't prompt + about it. This can be useful while working with local repositories, + but is a huge security risk if data authenticity isn't ensured in + another way by the user itself. The usage of the + option for &sources-list; entries should + usually be preferred over this global override. Configuration Item: + APT::Get::AllowUnauthenticated. - + + + Forbid the update command to acquire unverifiable + data from configured sources. Apt will fail at the update command + for repositories without valid cryptographically signatures. + + Configuration Item: Acquire::AllowInsecureRepositories. + + + + Show user friendly progress information in the + terminal window when packages are installed, upgraded or + removed. For a machine parsable version of this data see + README.progress-reporting in the apt doc directory. + Configuration Item: Dpkg::Progress and Dpkg::Progress-Fancy. + + &apt-commonoptions; @@ -526,7 +595,7 @@ See Also - &apt-cache;, &apt-cdrom;, &dpkg;, &dselect;, &sources-list;, + &apt-cache;, &apt-cdrom;, &dpkg;, &sources-list;, &apt-conf;, &apt-config;, &apt-secure;, The APT User's guide in &guidesdir;, &apt-preferences;, the APT Howto.