title: How to use grep to find particular words in fields in a flat-file database?
body: <p>I need this grep call:</p>
  
  <pre><code>grep "field3=highland" data_file
  </code></pre>
  
  <p>to return both results with "field3=highland" as well as "field3=chicago highland".
  How can I redesign the grep call to account for both scenarios?</p>