{ title: "Pak Features", crumbs: [], }
<h1>Embedthis Pak&trade; Features</h1>

<p>Pak has the following major features:</p>
<ul>
  <li>Install, list and uninstall packages into a local application.</li>
  <li>Manage package versions and dependencies.</li>
  <li>Automatically retrieves and installs dependent packages.</li>
  <li>Update and upgrade packages and their dependencies.</li>
  <li>
    Support version expressions using
    <a href="http://semver.org">Semantic Versioning 2.0</a>.
  </li>
  <li>
    Packages are described via a pak.json file that is compatible with
    <a href="http://nodejs.org">NodeJS</a> package.json files.
  </li>
  <!--
                <li>Publish and retract packages in the
                    <a href="https://www.embedthis.com/catalog/">Pak Catalog</a>.</li>
                <li>Supports <a href="http://github.com">GitHub</a> and <a href="http://npmjs.org/">NPM</a> as the primary
                    Pak storage repositories.</li>
                -->
  <li>Manages a local cache of retrieved packages.</li>
</ul>

<h2>What's Unique</h2>
<p>
  While Pak has a strong feature set, there are some characteristics that make
  Pak unique.
</p>
<ul>
  <li>
    Pak is a meta-package manager in that is works with multiple package
    catalogs.
  </li>
  <!--
                <li>Integrated with the <a href="http://bower.io/search">Bower</a> and
                    <a href="http://npmjs.org">NPM</a> catalogs for over 150,000 extra packages.</li>
                -->
  <li>
    Post install configuration of packages by selectively exporting package
    contents into local "lib" directory.
  </li>
  <li>Can override and wrap existing 3rd party packages.</li>
  <li>Very fast operation.</li>
</ul>

<h2>Commands</h2>
<p>The Pak command has the following commands:</p>
<table class="ui table segment" title="commands">
  <thead>
    <tr>
      <th>Command</th>
      <th>Description</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>cache</td>
      <td>Download and save packages to the the local package cache</td>
    </tr>
    <tr>
      <td>cached</td>
      <td>List packages in the cache</td>
    </tr>
    <tr>
      <td>config</td>
      <td>Show the Pak configuration</td>
    </tr>
    <tr>
      <td>depend</td>
      <td>Display installed package dependencies</td>
    </tr>
    <tr>
      <td>edit</td>
      <td>Edit a package description file</td>
    </tr>
    <tr>
      <td>help</td>
      <td>Display this usage help</td>
    </tr>
    <tr>
      <td>info</td>
      <td>Display README for a package</td>
    </tr>
    <tr>
      <td>init</td>
      <td>Create a new pak.json</td>
    </tr>
    <tr>
      <td>install</td>
      <td>Install a package on the local system</td>
    </tr>
    <tr>
      <td>list</td>
      <td>list installed packages</td>
    </tr>
    <tr>
      <td>prune</td>
      <td>Prune named packages</td>
    </tr>
    <tr>
      <td>publish</td>
      <td>publish a package in a catalog</td>
    </tr>
    <tr>
      <td>retract</td>
      <td>Unpublish a package</td>
    </tr>
    <tr>
      <td>search</td>
      <td>Search for packages in the catalog</td>
    </tr>
    <tr>
      <td>uninstall</td>
      <td>Uninstall a package on the local system</td>
    </tr>
    <tr>
      <td>update</td>
      <td>Update the cache with latest version of packages</td>
    </tr>
    <tr>
      <td>upgrade</td>
      <td>Upgrade installed packages</td>
    </tr>
  </tbody>
</table>