title: Base64 data in awk
body: <p>I have file and process with awk tool.</p>
  
  <pre><code>awk -F "|" '{print $3 "|" $7 "|" $1 "|" $2}' animals.csv | grep cats &gt;&gt; data.txt
  </code></pre>
  
  <p>How can i make $3 to encode base64 format?</p>
  
  <p>Thank you.</p>