Linux operating system was born on October 5, 1991
but there are many versions. It is currently used by people all over the world. Because it is open source, engineers around the world are constantly contributing code to the Linux operating system to make it more perfect.
Linux operating system is widely used in tablets, switches, routers, video game consoles, desktop computers, handheld games, mainframes and supercomputers. (Recommended learning: linux operation and maintenance)
It should be emphasized that Linux itself is just a kernel, without a graphical interface and various gadgets that can dazzle you.
Therefore, we call those systems developed on the basis of the Linux kernel as Linux distributions.
Debian
Debian is extremely stable, which makes it ideal for use on servers. Debian usually maintains three sets of formal software libraries and one set of non-free software libraries, which has inspired several other distributions (such as Ubuntu and Kali, etc.).
The Debian operating system has derived multiple Linux distributions. It has over 37,500 packages, and the only other distribution that outdoes Debian in this regard is Gentoo. Debian uses apt or aptitude to install and update software.
Gentoo
Like Debian, the Gentoo operating system also contains a large number of software packages. Gentoo does not come in a precompiled form, but needs to be compiled for each system each time. Even the Gentoo community finds Gentoo difficult to install and use; however, it is considered the best place to learn about the inner workings of the Linux operating system.
When it comes to Gentoo, someone always says: "If you want to learn to use a Linux distribution, then learn to use that distribution; if you learn Gentoo, you also learn Linux." Gentoo uses portage to install and updated software.
Ubuntu
Ubuntu is a derivative of Debian and the most popular free operating system today. Ubuntu focuses on its applications in this market and is common on servers, cloud computing, and even some mobile devices running Ubuntu Linux.
Red Hat Enterprise Linux
This is the first Linux distribution for the commercial market. It is available in server versions and supports numerous processor architectures, including x86 and x86_64. Red Hat trains and certifies system administrators through the course Red Hat Certified System Administrator/Red Hat Certified Engineer (RHCSA/RHCE). As far as the global market is concerned, 80% of the total profit comes from support and the other 20% comes from training and certification, but this is not the case in India.
CentOS
CentOS is an enterprise Linux distribution built from the ground up using free source code from Red Hat Enterprise Linux. This refactored version completely removes the registered trademark and a very subtle change in the Binary package.
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