lass="anchor" aria-label="anchor" href="#getting-information-about-different-objects"></a>
</h3>
<div class="section level4">
<h4 id="content-of-files-and-groups">Content of files and groups<a class="anchor" aria-label="anchor" href="#content-of-files-and-groups"></a>
</h4>
<p>With respect to groups and files, we also want to have a simple way
to extract the contents. With the <strong>names</strong> function, we
can get all names of objects in a group or in the root directory of a
file</p>
<div class="sourc