Linux is a family of free and open-source Unix-like operating systems.

The word Linux stands for Linux Is Not UniX.

Linux was first released on September 17, 1991, by Linus Torvalds, who was then in his university period. He was inspired by the philosophy of Minux and Unix.

In this tutorial, we would love to offer you an introduction of the basic usage of Linux.

Linux is actually pretty easy to learn, for which I believe all of you can get to it soon.

Who is fit for this tutorial?

Since it is about the knowledge of Linux servers, it is most fit for those who engage in backend stuff and server maintenance and operation.

Prerequisite knowledge

You will get to know Linux sooner if you have the knowledge of Operating System.

In this tutorial, we will use one of many famous Linux versions: Centos, to introduce applications run on Linux.

Linux is Open-source

Linux is under the License of GPL, thus every person and institution has the total right to use all the basic codes of Linux, and modify these codes and redistribute it.

Since Linux is free software, anyone can create a Linux distribution that meets their needs.

The current mainstream Linux versions are:

  • Debian (and its derivatives Ubuntu, Linux Mint)
  • Fedora (and related versions of Red Hat Enterprise Linux, CentOS)
  • openSUSE
  • Gentoo Linux

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