JeebByte

Zer0Trace

About this app

Learn Linux and the command line — right on your phone, in short lessons you'll actually finish.

No computer. No setup. No boring lectures. You type real commands, you see what they do, and you
move on. Each lesson takes about 3 minutes.

WHY JEEBBYTE IS DIFFERENT

• You DO, you don't read. Almost every screen is a task — type a command, predict the output,
build it from tiles, match it to its meaning. No walls of text.
• Every question teaches. Get it wrong and it explains why, in plain words, without making you
feel stupid.
• Roman English or English. Learn in the language you actually think in — switch any time in
Settings. (Roman English = Hindi/Urdu written in English letters.)
• Made for total beginners. If you have never opened a terminal in your life, you are exactly who
this is built for. We assume you know nothing.
• The course needs no account. Your lessons, XP and streak stay on your phone. Only the
optional Earn tab asks you to sign in.

EARN JB POINTS (OPTIONAL)

Nothing in JeebByte costs money. Watch short videos, answer surveys and complete offers from
independent partners inside the app, and earn JB Points.

• Every lesson is already unlocked. JB Points are for cashing out, not for unlocking content.
• Cash out from Rs 25 via JazzCash, EasyPaisa, SadaPay, NayaPay, or a Pakistan or UAE bank
transfer. We charge no fee.
• Payouts are sent by hand, usually within 2 working days. There is no instant withdrawal.
• Partners can cancel a reward after it is credited, so a small part of your recent earnings is
held briefly and the target to withdraw sits a little above Rs 25. The app always shows what
is ready and what is not.
• Completely optional. The whole course works without ever opening it.
• You sign in with Google, and you must be 18 or over — the research panels require it.
• JB Points are a reward, not a currency or a deposit. They cannot be transferred to another
person. How much you earn depends on the surveys and offers available to you, which varies by
country and by day. We do not promise any amount.

WHAT YOU'LL LEARN (Termux Mastery — 10 modules, 62 lessons)

1. Get Termux running on your phone
2. Find your way around — pwd, ls, cd
3. Files and folders — mkdir, touch, cp, mv, rm
4. Read files — cat, less, head, tail
5. Get help when you're stuck — man, --help
6. Write files — nano
7. Install and run programs — pkg
8. Reach the internet from the terminal — curl, wget
9. Join commands together — pipes, grep, redirects
10. Write your first script — and run it

By the end you will have written a small program on your phone and run it yourself.

HOW IT WORKS

You practise inside the app first — nothing to install, nothing to break. The course also walks you
through installing Termux (the free terminal app) step by step with real screenshots, so when you're
ready you can run the same commands for real.

WHO IT'S FOR

• Total beginners who want to understand Linux and the command line
• Students starting out in IT, development, or cybersecurity — the terminal is the foundation
everything else is built on
• Anyone who has a phone and 3 minutes a day

MORE COMING

Termux Mastery is the first course. Networking is next. We'd rather ship one course that's actually
good than ten that aren't.

Free to use. The course has no ads and needs no account. Ads and surveys fund the optional Earn
tab — sign in with Google there to earn and cash out.