title: Replace a string with another string in all files below my current dir
body: <p>How do I replace every occurrence of a string with another string below my current directory?</p>
  
  <p><strong>Example:</strong> I want to replace every occurrence of <code>www.fubar.com</code> with <code>www.fubar.ftw.com</code> in every file under my current directory.</p>
  
  <p>From research so far I have come up with </p>
  
  <pre><code>sed -i 's/www.fubar.com/www.fubar.ftw.com/g' *.php
  </code></pre>