APT-MARK(8)								APT							       APT-MARK(8)

NAME

       apt-mark - show, set and unset various settings for a package

SYNOPSIS

       apt-mark {-f=filename | {auto | manual} pkg...  | {showauto | showmanual} [pkg...] } | {-v | --version} | {-h | --help}

       apt-mark {hold | unhold | install | remove | purge} pkg...  | {showhold | showinstall | showremove | showpurge} [pkg...]

DESCRIPTION

       apt-mark can be used as a unified front-end to set various settings for a package, such as marking a package as being
       automatically/manually installed or changing dpkg selections such as hold, install, deinstall and purge which are respected e.g. by apt-get
       dselect-upgrade or aptitude.

AUTOMATICALLY AND MANUALLY INSTALLED PACKAGES

       When you request that a package is installed, and as a result other packages are installed to satisfy its dependencies, the dependencies
       are marked as being automatically installed, while the package you installed explicitly is marked as manually installed. Once an
       automatically installed package is no longer depended on by any manually installed package it is considered no longer needed and e.g.
       apt-get or aptitude will at least suggest removing them.

       auto
	   auto is used to mark a package as being automatically installed, which will cause the package to be removed when no more manually
	   installed packages depend on this package.

       manual
	   manual is used to mark a package as being manually installed, which will prevent the package from being automatically removed if no
	   other packages depend on it.

       showauto
	   showauto is used to print a list of automatically installed packages with each package on a new line. All automatically installed
	   packages will be listed if no package is given. If packages are given only those which are automatically installed will be shown.

       showmanual
	   showmanual can be used in the same way as showauto except that it will print a list of manually installed packages instead.

   Options
       -f=filename, --file=filename
	   Read/Write package stats from the filename given with the parameter filename instead of from the default location, which is
	   extended_status in the directory defined by the Configuration Item: Dir::State.

PREVENT CHANGES FOR A PACKAGE

       hold
	   hold is used to mark a package as held back, which will prevent the package from being automatically installed, upgraded or removed.

       unhold
	   unhold is used to cancel a previously set hold on a package to allow all actions again.

       showhold
	   showhold is used to print a list of packages on hold in the same way as for the other show commands.

SCHEDULE PACKAGES FOR INSTALL, REMOVE AND PURGE
       Some front-ends like apt-get dselect-upgrade can be used to apply previously scheduled changes to the install state of packages. Such
       changes can be scheduled with the install, remove (also known as deinstall) and purge commands. Packages with a specific selection can be
       displayed with showinstall, showremove and showpurge respectively. More information about these so called dpkg selections can be found in
       dpkg(1).

OPTIONS

       -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.

FILES

       /var/lib/apt/extended_states
	   Status list of auto-installed packages. Configuration Item: Dir::State::extended_states.

SEE ALSO

       apt-get(8),aptitude(8),apt.conf(5)

DIAGNOSTICS

       apt-mark returns zero on normal operation, non-zero 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.

AUTHORS

       Mike O'Connor

       APT team

NOTES

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

APT 1.6.3ubuntu0.1						 25 September 2015						       APT-MARK(8)