The heart of any operating system is called the kernel, it performs all the fundamental stuff like allow the hardware to communicate with the software. The popular operating system are windows, apple operating system X, Linux etc. Linux is an open-source operating system. The functionality of a Linux operating system is like the functionality of the Unix operating system. The scientist by name Linus Torvalds discovered Linux operating system when he was a computer science student. He thought the Unix operating system needed improvements while he was working on Unix operating system, but the designers of Unix rejected his suggestions, and this led to the development of a Linux operating system that allows changes and modifications to be done by the users.
The three main reasons to study Linux are:
The applications of Linux are:
The built-in command in Linux to display a line of text or string on a standard output or a file, we use echo command in Linux. The below screenshot shows the output after the execution of echo command to print the statement Hello World.
Echo “Hello World!”
The prerequisites to learn Linux is a strong foundation of C programming language, basics on the operation of the operating system and knowledge of computer organization and architecture. To learn about the Linux based operating systems, getting started with an easy to use an operating system like Ubuntu is recommended. But after installing learn how to use the terminal and get familiar with the User interface. Soon update to Arch Linux or Gentoo to know the internal working.
Beginners can refer this tutorial to understand the basics of Linux, a necessity to learn Linux, applications of Linux, example of Linux and the prerequisites to learn Linux. This tutorial is helpful for people who want to pursue a career in the field of Linux. This tutorial is good learning for all other readers.