Chapter 1: Understanding the Linux Operating System
In this chapter, you'll learn what Linux is, how it came to exist, what its core components are, and why it powers most of the internet and cloud infrastructure today.
This is Chapter 1 of the LFCA Certification Course, where every command and example is tested on Ubuntu 26.04 LTS, but the concepts apply to any modern Linux distribution.
You've probably used Windows or macOS for most of your computing life, and they worked fine for browsing, streaming, and getting everyday things done.
But the moment you start looking at a career in IT, sysadmin work, cloud infrastructure, or DevOps, you keep running into the same operating system everywhere you go, and that operating system is Linux, so understanding what it is and why it took over the industry is the right place to start this course.