title: AWK Print Second Column of Last Line
body: <p>I'm trying to use AWK to post the second row of last line of this command (the total disk space):</p>
  
  <pre><code>df --total
  </code></pre>
  
  <p>The command I'm using is:</p>
  
  <pre><code>df --total | awk 'FNR == NF {print $2}'
  </code></pre>
  
  <p>But it does not get it right.
  Is there another way to do it?</p>