apt(8) - man - phpMan

APT(8)                                           APT                                          APT(8)



NAME
       apt - command-line interface

SYNOPSIS
       apt [-h] [-o=config_string] [-c=config_file] [-t=target_release] [-a=architecture] {list |
           search | show | update | install pkg [{=pkg_version_number | /target_release}]...  |
           remove pkg...  | upgrade | full-upgrade | edit-sources | {-v | --version} |
           {-h | --help}}

DESCRIPTION
       apt provides a high-level commandline interface for the package management system. It is
       intended as an end user interface and enables some options better suited for interactive
       usage by default compared to more specialized APT tools like apt-get(8) and apt-cache(8).

       Much like apt itself, its manpage is intended as an end user interface and as such only
       mentions the most used commands and options partly to not duplicate information in multiple
       places and partly to avoid overwhelming readers with a cornucopia of options and details.

       update (apt-get(8))
           update is used to download package information from all configured sources. Other
           commands operate on this data to e.g. perform package upgrades or search in and display
           details about all packages available for installation.

       upgrade (apt-get(8))
           upgrade is used to install available upgrades of all packages currently installed on the
           system from the sources configured via sources.list(5). New packages will be installed if
           required to satisfy dependencies, but existing packages will never be removed. If an
           upgrade for a package requires the removal of an installed package the upgrade for this
           package isn't performed.

       full-upgrade (apt-get(8))
           full-upgrade performs the function of upgrade but will remove currently installed
           packages if this is needed to upgrade the system as a whole.

       install, reinstall, remove, purge (apt-get(8))
           Performs the requested action on one or more packages specified via regex(7), glob(7) or
           exact match. The requested action can be overridden for specific packages by appending a
           plus (+) to the package name to install this package or a minus (-) to remove it.

           A specific version of a package can be selected for installation by following the package
           name with an equals (=) and the version of the package to select. Alternatively the
           version from a specific release can be selected by following the package name with a
           forward slash (/) and codename (bullseye, bookworm, sid ...) or suite name (stable,
           testing, unstable). This will also select versions from this release for dependencies of
           this package if needed to satisfy the request.

           Removing a package removes all packaged data, but leaves usually small (modified) user
           configuration files behind, in case the remove was an accident. Just issuing an
           installation request for the accidentally removed package will restore its function as
           before in that case. On the other hand you can get rid of these leftovers by calling
           purge even on already removed packages. Note that this does not affect any data or
           configuration stored in your home directory.

       autoremove (apt-get(8))
           autoremove is used to remove packages that were automatically installed to satisfy
           dependencies for other packages and are now no longer needed as dependencies changed or
           the package(s) needing them were removed in the meantime.

           You should check that the list does not include applications you have grown to like even
           though they were once installed just as a dependency of another package. You can mark
           such a package as manually installed by using apt-mark(8). Packages which you have
           installed explicitly via install are also never proposed for automatic removal.

       satisfy (apt-get(8))
           satisfy satisfies dependency strings, as used in Build-Depends. It also handles
           conflicts, by prefixing an argument with "Conflicts: ".

           Example: apt satisfy "foo, bar (>= 1.0)" "Conflicts: baz, fuzz"

       search (apt-cache(8))
           search can be used to search for the given regex(7) term(s) in the list of available
           packages and display matches. This can e.g. be useful if you are looking for packages
           having a specific feature. If you are looking for a package including a specific file try
           apt-file(1).

       show (apt-cache(8))
           Show information about the given package(s) including its dependencies, installation and
           download size, sources the package is available from, the description of the packages
           content and much more. It can e.g. be helpful to look at this information before allowing
           apt(8) to remove a package or while searching for new packages to install.

       list
           list is somewhat similar to dpkg-query --list in that it can display a list of packages
           satisfying certain criteria. It supports glob(7) patterns for matching package names as
           well as options to list installed (--installed), upgradeable (--upgradeable) or all
           available (--all-versions) versions.

       edit-sources (work-in-progress)
           edit-sources lets you edit your sources.list(5) files in your preferred text editor while
           also providing basic sanity checks.

SCRIPT USAGE AND DIFFERENCES FROM OTHER APT TOOLS
       The apt(8) commandline is designed as an end-user tool and it may change behavior between
       versions. While it tries not to break backward compatibility this is not guaranteed either if
       a change seems beneficial for interactive use.

       All features of apt(8) are available in dedicated APT tools like apt-get(8) and apt-cache(8)
       as well.  apt(8) just changes the default value of some options (see apt.conf(5) and
       specifically the Binary scope). So you should prefer using these commands (potentially with
       some additional options enabled) in your scripts as they keep backward compatibility as much
       as possible.

SEE ALSO
       apt-get(8), apt-cache(8), sources.list(5), apt.conf(5), apt-config(8), The APT User's guide
       in /usr/share/doc/apt-doc/, apt_preferences(5), the APT Howto.

DIAGNOSTICS
       apt returns zero on normal operation, decimal 100 on error.

BUGS
       APT bug page[1]. If you wish to report a bug in APT, please see
       /usr/share/doc/debian/bug-reporting.txt or the reportbug(1) command.

AUTHOR
       APT team

NOTES
        1. APT bug page
           http://bugs.debian.org/src:apt



APT 2.4.14                                  05 April 2020                                     APT(8)