title: Awk printing out smallest and highest number, in a time format
body: <p>I'm fairly new to linux/bash shell and I'm really having trouble printing two values (the highest and lowest) from a particular column in a text file. The file is formatted like this: <br/></p>
  
  <pre><code>Geoff        Audi           2:22:35.227
  Bob          Mercedes       1:24:22.338
  Derek        Jaguar         1:19:77.693
  Dave         Ferrari        1:08:22.921
  </code></pre>
  
  <p>As you can see the final column is a timing, I'm trying to use awk to print out the highest and lowest timing in the column. I'm really stumped, I've tried: <br/></p>
  
  <pre><code>awk '{print sort -n &lt;  $NF}' timings.txt 
  </code></pre>
  
  <p>However that didn't even seem to sort anything, I just received an output of: <br/></p>
  
  <pre><code>1
  0
  1
  0
  ...
  </code></pre>
  
  <p>Repeating over and over, it went on for longer but I didn't want a massive line of it when you get the point after the first couple iterations. </p>
  
  <p>My desired output would be:</p>
  
  <pre><code>Min: 1:08:22.921
  Max: 2:22:35.227   
  </code></pre>