title: What is the scope of rake in Rails
body: <p>I am very new to ruby on rails. What is the function of <code>rake</code>. For example here one command like</p>
  
  <pre><code>rake db:create
  </code></pre>
  
  <p>Here this command which is used to create the new database. But before we use <code>rake</code>. Why we use <code>rake</code> word here, what it is function. </p>
  
  <p>And what is the different between <code>rake</code> <code>rake-task</code> &amp; <code>rakefile</code>.</p>
  
  <p>Thanks for your advice.</p>