# Essential Linux

## Introduction to Linux

### Where does Linux originate from?

* The spiritual mother of Linux is [Unix](https://en.wikipedia.org/wiki/Unix).
* [POSIX](https://en.wikipedia.org/wiki/POSIX) is not an OS in itself but a **standard**.
	* Which OS's are [POSIX compliant](https://en.wikipedia.org/wiki/POSIX#POSIX-oriented_operating_systems)

### Who is behind this project?

* Who is [Richard Stallmann](https://en.wikipedia.org/wiki/Richard_Stallman)?
* Who is [Linux Torvalds](https://en.wikipedia.org/wiki/Linus_Torvalds)?

### What is the deal with 'GNU-slash-Linux'?

* [GNU/Linux](https://en.wikipedia.org/wiki/GNU/Linux_naming_controversy) controversy
	* What is a [kernel](https://en.wikipedia.org/wiki/Kernel_(operating_system))
	* What does [GNU](https://www.gnu.org/software/) bring to the table?

### Where can you *get* some Linux?

* You probably already have a Linux computer running at [home](https://opensource.com/article/19/8/everyday-tech-runs-linux)!

![Timeline](../assets/distro_timeline.png)

### Debian

* [Reasons](https://www.debian.org/intro/why_debian) to choose Debian.
* Why is Debian called [the universal operating system](https://www.reddit.com/r/debian/comments/22j0wf/so_why_debian_is_called_the_universal_operating/)
	* [comparison](https://en.wikipedia.org/wiki/Comparison_of_instruction_set_architectures) of CPU architectures
	* [download](https://www.debian.org/distrib/netinst) Debian

## How to create a virtual machine

Step by step walk-through of a VM creation in virtualbox with some notes on each step with best practice pointers.

## Breakdown of the Debian installation

* [step by step](https://debian-handbook.info/browse/stable/sect.installation-steps.html) installation instructions
	* **stress the graphical/minimal difference**