title: Using Crontab to schedule a task every other friday
body: <p>How would I use crontab to run a script at 5:30AM every other Friday in January? This is the what I have if I ran it every Friday. </p>
  
  <pre><code>30 5 * 1 5
  </code></pre>
  
  <p>If I did every other friday, where do i put the /2? Is it:</p>
  
  <pre><code>30 5 */2 1 5
  </code></pre>
  
  <p>or:</p>
  
  <pre><code>30 5 * 1 5/2
  </code></pre>