ahegazy0/linux-basics-for-hackers-notes: a structured companion to Linux Basics for Hackers

What the repository actually contains, and who it is for

This is a set of personal study notes from Linux Basics for Hackers by OccupyTheWeb, reorganised into 18 numbered Markdown modules. The README describes the origin plainly: the notes were compiled during personal lab practice in Obsidian, then "structured and organized with AI assistance for clarity, consistency, and easy navigation." That sentence matters more than most readers will notice. It tells you the content is a second pass over someone else's explanations, not primary research, and that the structure was imposed after the fact.

The intended reader is narrow. You are expected to have the book open beside the notes, or to have finished a chapter and want a condensed version to review. The requirements section lists VirtualBox or any VM software and a 64-bit Kali Linux install, so the exercises are meant to run in a disposable lab, not on a daily driver. The disclaimer repeats that: practice in your own lab, never on systems you do not own or have explicit permission to test.

If you are looking for a free substitute for the book, this is not it. The notes are a companion. The value is in the module boundaries and the quick reference tables, not in original teaching.

How the 18 modules are organised and what each one carries

The README lists modules 00 through 17, each as a separate top-level Markdown file. The sequence runs from lab setup and terminal basics through text manipulation, networking, software management, permissions, processes, environment variables, Bash scripting, archiving, filesystem and storage, logging, services, security and anonymity, wireless, kernel and loadable kernel modules, scheduled jobs, and Python scripting.

That ordering is close to the book's own progression, which is the point. Module 00 is Getting Started & Setting Up Your Lab, so the first file you open is about standing up the VM before touching any command. Modules 05 and 07 sit on permissions and environment variables, two areas where beginners lose the most time. Modules 12 and 13, Using & Abusing Services and Security & Anonymity, are where the material turns toward offensive practice, and they are also where the lab boundary matters most.

The README states that every module contains plain English explanations, key commands with examples, quick reference tables, diagrams where helpful, and practice exercises at the end. An update note says visual architecture diagrams were added across core modules to illustrate the filesystem tree, command pipelines, permissions, and kernel space. There is also an assets directory at the top level, which is where those diagrams presumably live. The README does not describe the file format of the diagrams or how they are referenced from the modules.

Cloning the notes and working through Module 00

There is no package, no installer, and no build step. The repository is Markdown files, so the setup is a clone plus whatever editor you already read text in. The README gives no clone command, so the one below is the standard form for a GitHub repository of this shape.

git clone https://github.com/ahegazy0/linux-basics-for-hackers-notes.git
cd linux-basics-for-hackers-notes
ls Module_*.md

The listing should show 18 files, from Module_00_Getting_Started.md through Module_17_Python_Scripting.md, plus README.md and the assets directory. If you prefer to read in a browser, GitHub renders the Markdown with its tables and links intact.

The first real use is Module 00, which covers setting up the lab. The README names the two prerequisites directly: VirtualBox or any VM software, and Kali Linux 64-bit. Install the hypervisor on your host, download the Kali image from the link the README points to, and create the VM. The module is where the actual click-by-click detail lives, and the README does not reproduce it.

Once the VM boots, the notes become a checklist. Open Module 01 alongside a terminal and type the commands rather than reading them. The README's own framing supports this: the notes came out of lab practice, so they are written to be executed, not skimmed.

Where the notes stop being useful

The most obvious limitation is that these are notes, and the README says so twice. A condensed explanation of a concept is only useful if you already met the concept once. Modules 15 and 17, on loadable kernel modules and Python scripting, compress topics that the book spends whole chapters on. If you arrive without that context, you will hit a paragraph that assumes a definition it never gives.

The second limitation is edition drift. The related searches around this project are full of people looking for a second or third edition, and the README never states which edition of Linux Basics for Hackers the notes were compiled against. Command syntax and tooling in security books move between printings. If your copy differs from the one the author used, module content and your book will disagree, and the notes give you no way to tell which is stale.

The third is scope. The README's extra resources section points outward to LabEx, OverTheWire Bandit, TryHackMe, CMD Challenge, and Hack The Box, which is a fair signal that the notes are not meant to carry a learner alone. The practice exercises at the end of each module are not described in any more detail than that, and the README does not say whether solutions are provided. Assume they are not until you check.

Finally, the repository states no licence. That is a real constraint if you teach from it.

How this compares with working from the book alone

The honest alternative is the book itself, plus its own index and your own notes. Linux Basics for Hackers is a linear text; this repository is the same material re-cut into 18 files with tables and diagrams. If you take notes well, you will produce something similar within a few weeks, tailored to the gaps you actually hit.

A second alternative is the hands-on route the README itself recommends: OverTheWire Bandit, TryHackMe's Linux Fundamentals module, or Hack The Box Academy's Linux Fundamentals course. The difference in approach is fundamental. Those are graded exercises where the environment tells you whether you succeeded. The notes are static prose with exercises whose answers the README does not document. Bandit will teach you to move around a filesystem because you have to; Module 10 will tell you about filesystem and storage and leave the doing to you.

A third option is the author's own sibling repository, Network Basics for Hackers Notes, which the README links at the bottom. Same format, different subject. If the format works for you here, that is the natural next step, and it is the only comparison the repository itself makes.

Maintenance, licensing, and what to check before relying on it

The repository is not archived, and the last push was on 2026-09-12, which is recent. That is the whole of what can be said about activity. There are no releases, so there is no versioning scheme and no changelog to consult. Any update lands as a commit against main, and the only way to see what changed is to read the commit history or diff the module files.

Upgrade cost is therefore near zero and near invisible at the same time. Nothing installs, so nothing breaks. But nothing announces a change either. If you fork the notes and edit them for your own cohort, pulling upstream changes means resolving Markdown conflicts by hand.

The licence is the bigger open question. The repository does not state one, and the README carries only an educational-purposes disclaimer rather than a licence grant. Without an explicit licence, the default position is that the author retains rights, which is awkward if you want to redistribute the modules in a course pack or bundle them into internal training. The underlying book is separately copyrighted by No Starch Press, and the notes paraphrase its structure and command examples. If you plan to reuse this beyond personal study, resolve both questions first. That is a factual constraint, not legal advice.

Editorial conclusion

Adopt this if you already own the book or are working through it and want a checklist of topics with command examples you can grep in a text editor. Do not adopt it if you wanted the book itself, a PDF, or a self-contained course that explains concepts from zero, because the modules assume the reader is following along with OccupyTheWeb's text. Verify first that the module list matches the edition you are reading, since the repository does not state which edition it was compiled against, and check the licence file before you copy any module into your own training material.

Frequently asked questions

Official sources

1. ahegazy0/linux-basics-for-hackers-notes on GitHub
2. Issues
3. README