title: Split a comma separated strings in Bash
body: <p>I have this file with 20k+ IPs inside:</p>
  
  <pre><code>104.20.15.220,104.20.61.219,104.20.62.219,104.20.73.221,104.20.74.221,104.20.14.220
  104.20.15.220,104.20.73.221,104.20.74.221,104.25.195.107,104.25.196.107,104.20.14.220
  91.215.154.209
  ...
  </code></pre>
  
  <p>The question is how to split in into single IPs on each string:</p>
  
  <pre><code>104.20.15.220
  104.20.61.219
  </code></pre>