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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<title>debtree - Package dependency graphs</title>
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<h1>debtree &mdash; package dependency graphs on steroids</h1>

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<h3><a href="index.html">Introduction</a></h3>

<h3>Example: debconf</h3>

<ol start="0">
<li><a href="debconf0.html">Graph from apt-cache (for comparison)</a></li>
<li><b>Basic graph (only hard dependencies and conflicts)</b></li>
<li><a href="debconf2.html">Basic graph with Recommends</a></li>
<li><a href="debconf3.html">Basic graph with Recommends and Suggests</a></li>
<li><a href="debconf4.html">Basic graph with Recommends and showing alternatives</a></li>
<li><a href="debconf5.html">Default graph (showing Recommends, alternatives and versions)</a></li>
<li><a href="debconf6.html">Default graph with Suggests</a></li>
<li><a href="debconf7.html">Default graph with Suggests and versioned Conflicts</a></li>
<li><a href="debconf8.html">Default graph (rotated)</a></li>
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<hr />

<p>
Shown are:
<font color="purple">Pre-Depends</font>,
<font color="blue">Depends</font>,
unversioned <font color="red">Conflicts</font> and
relevant <font color="green">Provides</font>.
</p><p>
This is one of the most basic graphs that can be generated. Only the Conflicts
and the virtual package <tt>debconf-2.0</tt> that <tt>debconf</tt> provides could
have been suppressed.
</p><p>
The graph also shows the full set of packages that provide <tt>debconf-2.0</tt>.
The square brackets around <tt>debconf</tt> indicate that the package is also
displayed elsewhere in the graph, while the braces around <tt>cdebconf</tt>
indicate that the dependency info for that package is not included in the graph.
</p><p>
<tt>perlapi-5.10.0</tt> is a virtual package provided by <tt>perl-base</tt>.
A virtual package is only displayed if it is provided by the requested package,
or if it is a dependency or conflict from some package included in the graph.
</p><p>
Some packages, like <tt>libc6</tt> and <tt>zlib1g</tt>, have been excluded from
all graphs as so many packages depend on them that they only cause clutter without
adding any real information; it would be nice to show them in some other way.
</p><p>
The reddish shade of <tt>debconf-tiny</tt> means that the package is unknown
(does not exist in the package database).
</p><p>
Note the circular dependency between <tt>debconf</tt> and <tt>debconf-i18n</tt>.
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<p><tt><font size="-1">
$ debtree --no-recommends --no-alternatives --no-versions debconf
</font></tt></p>
<hr />
<img src="thumbs/debconf1.png" alt="Dependency graph for debconf" />
<hr />
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<td>Generated .dot file:</td>
<td><a href="debconf1.dot">DOT</a></td>
</tr><tr>
<td>Full-sized images:</td>
<td><a href="debconf1.ps" target="_blank">PS</a>&nbsp;|&nbsp;<a href="debconf1.png" target="_blank">PNG</a>&nbsp;|&nbsp;<a href="debconf1.svg" target="_blank">SVG</a></td>
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<p><font size="-1"><a href="aptitude1.html">Equivalent graph for aptitude</a></font></p>

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