Privacy

In short: no accounts, no cookies, no ads and no tracking of people. We count anonymously what happens in the challenges, so we can see where learners get stuck, and we keep the feedback you choose to send.

What stays in your browser

• The Linux machine runs entirely in your browser. What you type in the terminal, the files you create and your answers are checked there and aren't sent to us. (The only exception: if you send feedback, your last Check result goes along with it, see below.)
• Your progress (which challenges you've solved and how many hints you've opened) is saved in your browser's local storage, on this device only. Clearing this site's data in your browser deletes it.

Anonymous usage counts

When you use a challenge, the page reports what happens: the challenge was opened, Linux started (or failed to load), Check was pressed, the challenge was solved, a hint was opened, Reset was pressed. Each report contains only the challenge, the event and whether you're on a phone or a computer. We only keep a count per day, for example "back-on-track, 18 October, solved on a phone: 22". Nothing identifies you, and there's no way to follow one person through the course.

Feedback you send

If you rate a challenge or use "Something wrong or confusing?", we save your rating or message together with the challenge, how many hints you had opened, your last Check result, whether you're on a phone or a computer, and the time. Please don't include personal details unless you'd like a reply; if you add your email address, we only use it to reply to you.

To stop one sender from flooding us with messages, we use a scrambled code made from your IP address and the date. The IP address itself isn't saved, and the code changes every day.

Visitor statistics and hosting

The site is hosted by Cloudflare, which also stores the counts and feedback above. Like any web host, Cloudflare processes your IP address to deliver the pages. We use Cloudflare Web Analytics to count page views; it doesn't use cookies or fingerprinting. See Cloudflare's privacy policy.

Questions

learnbash.dev is a small, non-commercial project. Questions about this page: open an issue on GitHub.

Last updated: 18 October 2026.