title: Extracting text in between strings
body: <p>How do I extract text in between strings with very specific pattern from a file full of these lines? Ex:</p>
  
  <pre><code>input:a_log.gz:make=BMW&amp;year=2000&amp;owner=Peter
  </code></pre>
  
  <p>I want to essentially capture the part <code>make=BMW&amp;year=2000</code>. I know for a fact that the line can start out as "input:(any number of characters).gz:" and end with "owner=Peter"</p>