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 (Advanced Package Tool) is the command-line tool for handling packages. It provides a commandline
       interface for the package management of the system. See also apt-get(8) and apt-cache(8) for more
       low-level command options.

       list
           list is used to display a list of packages. It supports shell pattern for matching package names and
           the following options: --installed, --upgradable, --all-versions are supported.

       search
           search searches for the given term(s) and display matching packages.

       show
           show shows the package information for the given package(s).

       install
           install is followed by one or more package names desired for installation or upgrading.

           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. This will cause that version to be located and
           selected for install. Alternatively a specific distribution can be selected by following the package
           name with a slash and the version of the distribution or the Archive name (stable, testing,
           unstable).

       remove
           remove is identical to install except that packages are removed instead of installed. Note that
           removing a package leaves its configuration files on the system. If a plus sign is appended to the
           package name (with no intervening space), the identified package will be installed instead of
           removed.

       edit-sources
           edit-sources lets you edit your sources.list file and provides basic sanity checks.

       update
           update is used to resynchronize the package index files from their sources.

       upgrade
           upgrade is used to install the newest versions of all packages currently installed on the system from
           the sources enumerated in /etc/apt/sources.list. New package will be installed, but existing package
           will never removed.

       full-upgrade
           full-upgrade performs the function of upgrade but may also remove installed packages if that is
           required in order to resolve a package conflict.

OPTIONS

       All command line options may be set using the configuration file, the descriptions indicate the
       configuration option to set. For boolean options you can override the config file by using something like
       -f-,--no-f, -f=no or several other variations.

       -h, --help
           Show a short usage summary.

       -v, --version
           Show the program version.

       -c, --config-file
           Configuration File; Specify a configuration file to use. The program will read the default
           configuration file and then this configuration file. If configuration settings need to be set before
           the default configuration files are parsed specify a file with the APT_CONFIG environment variable.
           See apt.conf(5) for syntax information.

       -o, --option
           Set a Configuration Option; This will set an arbitrary configuration option. The syntax is -o
           Foo::Bar=bar.  -o and --option can be used multiple times to set different options.

SCRIPT USAGE

       The apt(8) commandline is designed as a end-user tool and it may change the output between versions.
       While it tries to not break backward compatibility there is no guarantee for it either. All features of
       apt(8) are available in apt-cache(8) and apt-get(8) via APT options. Please prefer using these commands
       in your scripts.

DIFFERENCES TO APT-GET(8)

       The apt command is meant to be pleasant for end users and does not need to be backward compatible like
       apt-get(8). Therefore some options are different:

       •   The option DPkgPM::Progress-Fancy is enabled.

       •   The option APT::Color is enabled.

       •   A new list command is available similar to dpkg --list.

       •   The option upgrade has --with-new-pkgs enabled by default.

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 1.0.1ubuntu2.24                             25 November 2013                                          APT(8)