title: Print second-to-last column/field in `awk`
body: <p>I want to print the second-to-last column or field in <code>awk</code>. The number of fields is the <code>NF</code> variable. I know that I should be able to use <code>$NF</code>, but I'm not sure how it can be used.</p>
  <p>And this does not seem to work:</p>
  <pre><code>awk ' { print ( $NF-- )  } '
  </code></pre>