This repository presents a collection of essential solutions, practices, and concepts for building, managing, and automating environments based on Linux. Each branch covers a specific aspect of the operating system — such as permissions, processes, networking, security, integration with automation tools, among others.
The practical examples are organized modularly and, when applicable, implemented in Java, demonstrating how general-purpose programming languages can interact with the operating system for tasks like file handling, command execution, and resource monitoring.
To facilitate scenario reproduction, each chapter includes configurable environments using Vagrant — allowing anyone to run the examples in an isolated and controlled manner without relying on the host machine configuration. However, Vagrant usage is optional: the main focus is on concepts and practices that can be applied across any Linux distribution.
The goal is to offer a solid and reusable reference for professionals working in infrastructure, DevOps, or backend development — with a focus on clarity, efficiency, and best practices.
To run the example environments provided in this repository, you’ll need the following tools installed on your local machine:
- Oracle VirtualBox – Free hypervisor used as the default provider for virtual machines.
- Vagrant – Automation tool for provisioning and managing development environments.
💡 These tools are only recommended if you wish to run the examples locally. The conceptual content and code snippets can be understood independently of the practical execution.
This repository is structured in thematic chapters, each addressing a specific aspect of the Linux operating system. To keep the content modular and version-controlled, each chapter is located in a separate branch.
- The
mainbranch acts as the central index of the project. It contains bothREADME.mdfiles (in English and Portuguese), along with general requirements and navigation guidance. - Each chapter resides in its own branch, named using a numeric prefix and a descriptive English identifier (e.g.,
01-fhs,02-boot-process,03-systemd). - Within each branch, multiple
README.mdfiles may exist to cover different sections or subtopics. - All documentation files are provided in Portuguese (
README.pt-BR.md) and English (README.md).
At the end of the README.md in the main branch, you’ll find the 📚 Chapter Catalog section, which lists all the topics covered in this repository. Each row of the table contains the chapter title and a direct link to the respective content, making it easy to jump between topics.
Sample navigation structure:
| Chapter | Link to English content |
|---|---|
| 00 - Linux Fundamentals: Kernel and Distros | 📘 00-linux-fundamentals |
| 01 - Linux Directory Structure | 📘 01-fhs |
| 02 - System Boot Process | 📘 02-boot-process |
💡 The table above provides a summary of available chapters. To access any chapter, just click the corresponding link — you’ll be redirected to the specific branch on GitHub without needing to clone the repository or use Git commands.
The complete list of all chapters can be found in the 📚 Chapter Catalog section at the end of this file.
| Chapter | Link to English content |
|---|---|
| 00 - Linux Fundamentals: Kernel and Distros | 📘 00-linux-fundamentals |
| 01 - Linux Directory Structure | 📘 01-fhs |
| 02 - System Boot Process | 📘 02-boot-process |
| 03 - Service Management with systemd | 📘 03-systemd |
If this project helped or inspired you, consider leaving a star ⭐ on the repository!
Feel free to open issues with suggestions, corrections, or questions. This repository is a space for continuous improvement and the consolidation of best practices in using Linux as an infrastructure platform.
➡️ Go to 00 - Linux Fundamentals: Kernel and Distros
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