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[[Linux]] is a free open-source operating system based on [[Unix]]. [[Linus Torvalds]] originally created Linux with the assistance of developers from around the world. Linux is:
* Network operating system
Strictly speaking, Linux is a [[kernel]]. A [[kernel]] provides access to the computer hardware and control access to resourcessuch as:* Files and data.* Running programs.* Loading programs into memory.* Networks.* Security and firewall.* Other resources etc. The kernel decides who will use a resource, for how long and when. You can download the Linux kernel from the official web site. However, the Linux kernel itself is useless unless you get all the applications such as [[text editors]], [[email clients]], [[browsers]], [[office applications]], etc. Therefore, someone came up with idea of a [[Linux distribution]]. A typical Linux distribution includes: * Linux kernel.* GNU application utilities such as text editors, browsers etc.* Collection of various GUI (X windows) applications and utilities.* Office application software.* Software development tools and compilers.* Thousands of ready to use application software packages.* Linux Installation programs/scripts.* Linux post installation management tools daily work such as adding users, installing applications, etc.* And, a [[Shell]] to glue everything together. Corporate and small businesses users need support while running Linux, so companies such as [[Red Hat]] or [[Novell]] provide Linux tech-support and sell it as product. Nevertheless, community driven Linux distributions do exist such as [[Debian]], [[Gentoo]] and they are entirely free. There are over 200+ Linux distributions.
However, the Linux kernel itself is useless unless you get all the applications such as [[text editors]], [[email clients]], [[browsers]], [[office applications]], etc. Therefore, someone came up with idea of a [[Linux distribution]]. A typical Linux distribution includes:
* Linux kernel
* GNU application utilities such as text editors, browsers
* GUI (X windows)
* Office application software
* Software development tools and compilers
* Thousands of ready to use application software packages
* Linux Installation programs/scripts
* Linux post installation management tools daily work such as adding users, installing applications, etc
Corporate and small businesses users need support while running Linux, so companies such as [[Red Hat]] or [[Novell]] provide Linux tech-support and sell it as product. Nevertheless, community driven Linux distributions do exist such as [[Debian]], [[Gentoo]] and they are entirely free. There are over 200+ Linux distributions.
[[Category:Introduction to Shells]]
 
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