title: Difference between Eclipse's "clean project" and Maven's "mvn clean" in m2e
body: <p>I use M2e + Eclipse + Maven and I would like to know what the difference is between:</p>
  
  <ul>
  <li><strong>running "mvn clean" in a terminal</strong> and</li>
  <li><strong>running "clean project" from Eclipse</strong>?</li>
  </ul>
  
  <p>Can anyone please advise?</p>