title: Regular user chown (only change group)
body: <p>While I have seen this question asked multiple times and in a variety of ways, I still haven't found a satisfactory answer.</p>
  
  <p>Due to security issues, I understand that chown can only be run by a superuser.</p>
  
  <p>Can a regular user change just the <em>group</em> of a folder or file of which he is the owner?</p>
  
  <p>I have the following issue: While administrating a server, a student (who I would prefer not to add to the sudoers) configures folders and adds content for a web server. If a folder is created in his home folder, how could he change the <em>group</em>, not the owner? If he could add the <em>www</em> group to his folder, then he would be free to configure nginx and other parameters.</p>