title: zgrep to search pattern in log
body: <p>I have a log file, in this pattern:</p>
  
  <pre><code>IP - - [date] "command" response time
  </code></pre>
  
  <p>I want to search in the log the lines which contains the ip:<code>68.45.3.1</code> and part of the command: <code>"/api/con"</code></p>
  
  <p>So this is a correct result:</p>
  
  <pre><code>68.45.3.1 - - [05/Nov/2015:03:48:25 -0500] "GET /5.0/api/con/1" 20:01
  </code></pre>
  
  <p>How can I do it?</p>