title: Grep wildcard in the middle
body: <p>How do I match lines like these with UNIX's <code>grep</code>?</p>
  
  <pre><code>call($variable, 'tiki-index.php');
  call('string123', 'tiki-index.php');
  call(13, 'tiki-index.php');
  </code></pre>
  
  <p>I tried</p>
  
  <pre><code>user@host:~$ grep -e "smarty-&gt;assign(*, 'tiki-index.php');" .
  </code></pre>
  
  <p>but the command matches none of the above.</p>