title: I can't find apache/htdocs on my Mac OS and could anyone explain the following sentences' meaning?
body: <p>Our teacher gives us  a sample CodeIgniter application which is named "timetable.tar" Then he asks for running this application through following steps:</p>
  
  <ol>
  <li>Uncompress and untar the file</li>
  <li>Install it under apache/htdocs</li>
  <li>Change the values of the database, username, and password settings in    airuoft/application/config/database.php to the appropriate values for your database.
  Start Apache</li>
  <li>....</li>
  </ol>
  
  <p>I am really confused with the step 2. and i can't find apache/htdocs folder on my Mac OS X 10.8.4</p>
  
  <p>BTW, I have already installed PHP and Apache.
  Thank you.</p>