title: How to remove lines beginning with a specific character
body: <p>I'm stuck with the situation where I have to remove all lines from code where lines are beginning with #include, like so:</p>
  
  <pre><code>#include 'utils/namespace.js'
  #include 'utils/constants.js'
  #include 'utils/helpers.js'
  #include 'utils/json2.js'
  #include 'utils/polifill.js'
  </code></pre>
  
  <p>Any suggestions? Would be greatly appreciated.</p>