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<?xml version="1.0" encoding="utf-8" standalone="no"?>
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
<!ENTITY % aptent SYSTEM "apt.ent"> %aptent;
<!ENTITY % aptverbatiment SYSTEM "apt-verbatim.ent"> %aptverbatiment;
<!ENTITY % aptvendor SYSTEM "apt-vendor.ent"> %aptvendor;
]>
<refentry>
<refentryinfo>
&apt-author.moconnor;
&apt-author.team;
&apt-email;
&apt-product;
<!-- The last update date -->
<date>2018-12-11T00:00:00Z</date>
</refentryinfo>
<refmeta>
<refentrytitle>apt-mark</refentrytitle>
<manvolnum>8</manvolnum>
<refmiscinfo class="manual">APT</refmiscinfo>
</refmeta>
<!-- Man page title -->
<refnamediv>
<refname>apt-mark</refname>
<refpurpose>show, set and unset various settings for a package</refpurpose>
</refnamediv>
&synopsis-command-apt-mark;
<refsect1><title>Description</title>
<para><command>apt-mark</command> 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 <command>dpkg</command>
selections such as hold, install, deinstall and purge which are respected
e.g. by <command>apt-get dselect-upgrade</command> or <command>aptitude</command>.
</para>
</refsect1><refsect1><title>Automatically and Manually Installed Packages</title>
<para>
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. <command>apt-get</command> or <command>aptitude</command>
will at least suggest removing them.
</para>
<variablelist>
<varlistentry><term><option>auto</option></term>
<listitem><para><literal>auto</literal> 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.
</para></listitem>
</varlistentry>
<varlistentry><term><option>manual</option></term>
<listitem><para><literal>manual</literal> 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.
</para></listitem>
</varlistentry>
<varlistentry><term><option>minimize-manual</option></term>
<listitem><para><literal>minimize-manual</literal> is used to mark
(transitive) dependencies of metapackages as automatically installed.
This can be used after an installation for example, to minimize the
number of manually installed packages; or continuously on systems
managed by system configuration metapackages.
</para></listitem>
</varlistentry>
<varlistentry><term><option>showauto</option></term>
<listitem><para><literal>showauto</literal> 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.
</para></listitem>
</varlistentry>
<varlistentry><term><option>showmanual</option></term>
<listitem><para><literal>showmanual</literal> can be used in
the same way as <literal>showauto</literal> except that it will print
a list of manually installed packages instead.
</para></listitem>
</varlistentry>
</variablelist>
<refsect2><title>Options</title>
<variablelist>
<varlistentry>
<term><option>-f=&synopsis-param-filename;</option></term>
<term><option>--file=&synopsis-param-filename;</option></term>
<listitem><para>
Read/Write package stats from the filename given with the parameter
&synopsis-param-filename; instead of from the default location, which
is <filename>extended_states</filename> in the directory defined
by the Configuration Item: <literal>Dir::State</literal>.
</para></listitem>
</varlistentry>
</variablelist>
</refsect2>
</refsect1><refsect1><title>Prevent Changes for a Package</title>
<variablelist>
<varlistentry><term><option>hold</option></term>
<listitem><para><literal>hold</literal> is used to mark a
package as held back, which will prevent the package from being
automatically installed, upgraded or removed.
</para></listitem>
</varlistentry>
<varlistentry><term><option>unhold</option></term>
<listitem><para><literal>unhold</literal> is used to cancel a
previously set hold on a package to allow all actions again.
</para></listitem>
</varlistentry>
<varlistentry><term><option>showhold</option></term>
<listitem><para><literal>showhold</literal> is used to print a list
of packages on hold in the same way as for the other show commands.
</para></listitem>
</varlistentry>
</variablelist>
</refsect1><refsect1><title>Schedule Packages for Install, Remove and Purge</title>
<para>
Some front-ends like <command>apt-get dselect-upgrade</command> can be used to
apply previously scheduled changes to the install state of packages. Such changes
can be scheduled with the <option>install</option>, <option>remove</option>
(also known as <option>deinstall</option>) and <option>purge</option> commands.
Packages with a specific selection can be displayed with <option>showinstall</option>,
<option>showremove</option> and <option>showpurge</option> respectively.
More information about these so called dpkg selections can be found in &dpkg;.
</para>
</refsect1>
<refsect1><title>Options</title>
<variablelist>
&apt-commonoptions;
</variablelist>
</refsect1>
<refsect1><title>Files</title>
<variablelist>
&file-extended_states;
</variablelist>
</refsect1>
<refsect1><title>See Also</title>
<para><phrase>&apt-get;,&aptitude;,&apt-conf;</phrase></para>
</refsect1>
<refsect1><title>Diagnostics</title>
<para><command>apt-mark</command> returns zero on normal operation, non-zero on error.</para>
</refsect1>
&manbugs;
</refentry>
|
