title: How do I recursively unzip nested ZIP files?
body: <p>Given there is a secret file deep inside a nested ZIP file, i.e. a zip file inside a zip file inside a zip file, etc...</p>
  
  <p>The zip files are named <code>1.zip</code>, <code>2.zip</code>, <code>3.zip</code>, etc...</p>
  
  <p>We don't know how deep the zip files are nested, but it may be thousands.</p>
  
  <p>What would be the easiest way to loop through all of them up until the last one to read the secret file?</p>
  
  <p>My initial approach would have been to call <code>unzip</code> recursively, but my Bash skills are limited. What are your ideas to solve this?</p>