{"id":867,"date":"2024-12-23T09:07:44","date_gmt":"2024-12-23T09:07:44","guid":{"rendered":"https:\/\/coderepublics.com\/blog\/?p=867"},"modified":"2024-12-23T11:43:40","modified_gmt":"2024-12-23T11:43:40","slug":"introduction-to-linux-operating-system","status":"publish","type":"post","link":"https:\/\/coderepublics.com\/blog\/redhat\/introduction-to-linux-operating-system\/","title":{"rendered":"Introduction to Linux Operating System: A Comprehensive Guide for Beginners"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_71 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/coderepublics.com\/blog\/redhat\/introduction-to-linux-operating-system\/#The_Origins_of_UNIX_and_Linux\" title=\"The Origins of UNIX and Linux\">The Origins of UNIX and Linux<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/coderepublics.com\/blog\/redhat\/introduction-to-linux-operating-system\/#UNIX_and_Linux_Flavours\" title=\"UNIX and Linux Flavours\">UNIX and Linux Flavours<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/coderepublics.com\/blog\/redhat\/introduction-to-linux-operating-system\/#Linux_Operating_System_Community_and_Family_Connections\" title=\"Linux Operating System Community and Family Connections\">Linux Operating System Community and Family Connections<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/coderepublics.com\/blog\/redhat\/introduction-to-linux-operating-system\/#Key_Features_of_UNIX_and_Linux_Operating_System\" title=\"Key Features of UNIX and Linux Operating System\">Key Features of UNIX and Linux Operating System<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/coderepublics.com\/blog\/redhat\/introduction-to-linux-operating-system\/#Use_of_UNIX_and_Linux\" title=\"Use of UNIX and Linux\">Use of UNIX and Linux<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/coderepublics.com\/blog\/redhat\/introduction-to-linux-operating-system\/#Linux_Kernel_The_Heart_of_the_Operating_System\" title=\"Linux Kernel: The Heart of the Operating System\">Linux Kernel: The Heart of the Operating System<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/coderepublics.com\/blog\/redhat\/introduction-to-linux-operating-system\/#Linux_Kernel_and_Its_Components\" title=\"Linux Kernel and Its Components\">Linux Kernel and Its Components<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/coderepublics.com\/blog\/redhat\/introduction-to-linux-operating-system\/#Understanding_the_UNIXLinux_Shell\" title=\"Understanding the UNIX\/Linux Shell\">Understanding the UNIX\/Linux Shell<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/coderepublics.com\/blog\/redhat\/introduction-to-linux-operating-system\/#What_is_the_Shell\" title=\"What is the Shell?\">What is the Shell?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/coderepublics.com\/blog\/redhat\/introduction-to-linux-operating-system\/#Comparison_to_WindowsDOS_Systems\" title=\"Comparison to Windows\/DOS Systems\">Comparison to Windows\/DOS Systems<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/coderepublics.com\/blog\/redhat\/introduction-to-linux-operating-system\/#Different_Flavors_of_Shells\" title=\"Different Flavors of Shells\">Different Flavors of Shells<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/coderepublics.com\/blog\/redhat\/introduction-to-linux-operating-system\/#Types_of_Shells\" title=\"Types of Shells\">Types of Shells<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/coderepublics.com\/blog\/redhat\/introduction-to-linux-operating-system\/#Is_Linux_the_Same_as_UNIX\" title=\"Is Linux the Same as UNIX?\">Is Linux the Same as UNIX?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/coderepublics.com\/blog\/redhat\/introduction-to-linux-operating-system\/#What_is_GNU\" title=\"What is GNU?\">What is GNU?<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/coderepublics.com\/blog\/redhat\/introduction-to-linux-operating-system\/#The_Free_Software_Foundation_FSF\" title=\"The Free Software Foundation (FSF)`\">The Free Software Foundation (FSF)`<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/coderepublics.com\/blog\/redhat\/introduction-to-linux-operating-system\/#The_Significance_of_GNU_Public_License_GPL\" title=\"The Significance of GNU Public License (GPL)\">The Significance of GNU Public License (GPL)<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/coderepublics.com\/blog\/redhat\/introduction-to-linux-operating-system\/#Linux_Booting_Process_A_Simple_Explanation\" title=\"Linux Booting Process: A Simple Explanation\">Linux Booting Process: A Simple Explanation<\/a><\/li><\/ul><\/nav><\/div>\n<h4><span class=\"ez-toc-section\" id=\"The_Origins_of_UNIX_and_Linux\"><\/span><strong>The Origins of UNIX and Linux<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>UNIX: UNIX was developed at AT&amp;T Bell Labs in 1969 by Ken Thompson and Dennis Ritchie. It became a foundation for many modern operating systems.<\/li>\n<li>Linux: In 1991, Linus Torvalds created Linux as a free and open-source operating system inspired by UNIX. It was written independently but adhered to UNIX principles. Torvalds aimed to modify UNIX to make it accessible and flexible for all users.<\/li>\n<li>GNU is a collection of free software that&#8217;s used to create the GNU\/Linux operating system.<\/li>\n<\/ul>\n<p>GNU and Linux: GNU stands for \u201cGNU\u2019s Not UNIX\u201d and refers to a collection of free open-source software tools. When combined with the Linux kernel, they form a complete operating system. Unlike Linux, Red Hat Enterprise Linux (RHEL) is not entirely open-source, but it builds upon the Linux kernel to offer enterprise-grade features and commercial support.<\/p>\n<div class=\"group\/conversation-turn relative flex w-full min-w-0 flex-col agent-turn\">\n<div class=\"flex-col gap-1 md:gap-3\">\n<div class=\"flex max-w-full flex-col flex-grow\">\n<div class=\"min-h-8 text-message flex w-full flex-col items-end gap-2 whitespace-normal break-words text-start [.text-message+&amp;]:mt-5\" dir=\"auto\" data-message-author-role=\"assistant\" data-message-id=\"35727f2a-9a76-4e73-9cb4-2d01fa70ecc3\" data-message-model-slug=\"gpt-4o\">\n<div class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[3px]\">\n<div class=\"markdown prose w-full break-words dark:prose-invert dark\">\n<h4><span class=\"ez-toc-section\" id=\"UNIX_and_Linux_Flavours\"><\/span><strong>UNIX and Linux Flavours<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Over the years, numerous operating systems have emerged, deriving inspiration from UNIX and Linux:<\/p>\n\n<table id=\"tablepress-13\" class=\"tablepress tablepress-id-13\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Derived from UNIX:<\/th><th class=\"column-2\">Derived from Linux:<\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"row-striping row-hover\">\n<tr class=\"row-2\">\n\t<td class=\"column-1\">Linux<\/td><td class=\"column-2\">Red Hat Enterprise Linux (RHEL)<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">HP-UX<\/td><td class=\"column-2\">CentOS<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">IBM AIX<\/td><td class=\"column-2\">Fedora<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">macOS<\/td><td class=\"column-2\">Ubuntu<\/td>\n<\/tr>\n<tr class=\"row-6\">\n\t<td class=\"column-1\">Sun Solaris (now Oracle Solaris)<\/td><td class=\"column-2\">Kali Linux<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-13 from cache -->\n<h3><span class=\"ez-toc-section\" id=\"Linux_Operating_System_Community_and_Family_Connections\"><\/span><strong>Linux Operating System Community and Family Connections<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The Linux ecosystem is powered by strong community support and contributions. Here&#8217;s how the communities are interlinked:<\/p>\n<ul>\n<li><strong>Fedora, CentOS, and Red Hat<\/strong>: Fedora acts as the testing ground for innovations that eventually shape RHEL and CentOS.<\/li>\n<li><strong>Debian Family<\/strong>: Debian serves as the backbone for distributions like Ubuntu, Kali Linux, and Linux Mint, providing a stable foundation for various use cases offering stability and a wide range of applications.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Key_Features_of_UNIX_and_Linux_Operating_System\"><\/span><strong>Key Features of UNIX and Linux Operating System<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Both UNIX and Linux are celebrated for their exceptional features:<\/p>\n<ul>\n<li><strong>Robust Security<\/strong>: Multiple layers of security, including firewalls and two-factor authentication (2FA), protect users.<\/li>\n<li><strong>Virus Resistance<\/strong>: Automatic execution permissions are disabled by default, reducing vulnerabilities to malware.<\/li>\n<li><strong>Stability<\/strong>: Linux supports older hardware and remains a favourite for critical systems.<\/li>\n<li><strong>Free and Open-Source Availability<\/strong>: Most Linux distributions are free, making them accessible to everyone.<\/li>\n<li><strong>Versatile File System Support<\/strong>: Linux supports a wide range of file systems for flexibility.<\/li>\n<li><strong>Efficient Resource Management<\/strong>: The operating system is optimized for better utilization of system resources.<\/li>\n<li><strong>Customizability<\/strong>: Users can tailor Linux to suit their specific needs.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Use_of_UNIX_and_Linux\"><\/span><strong>Use of UNIX and Linux<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>UNIX and Linux power some of the most demanding applications in the tech world:<\/p>\n<ul>\n<li><strong>Supercomputers<\/strong>: Most of the world\u2019s supercomputers run on Linux.<\/li>\n<li><strong>Servers<\/strong>: Linux dominates the server market due to its reliability and security.<\/li>\n<li><strong>Cloud Computing<\/strong>: It is the backbone of many cloud platforms and infrastructure services.<\/li>\n<\/ul>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"Linux_Kernel_The_Heart_of_the_Operating_System\"><\/span><strong>Linux Kernel: The Heart of the Operating System<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The kernel is often referred to as the heart of the operating system. It is responsible for managing and executing all hardware-related tasks. Here&#8217;s how it works:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-872\" title=\"Linux System Architecture\" src=\"https:\/\/coderepublics.com\/blog\/wp-content\/uploads\/2024\/12\/Linux-System-Architecture.png\" alt=\"Linux System Architecture: Introduction to Linux Operating System\" width=\"334\" height=\"297\" srcset=\"https:\/\/coderepublics.com\/blog\/wp-content\/uploads\/2024\/12\/Linux-System-Architecture.png 734w, https:\/\/coderepublics.com\/blog\/wp-content\/uploads\/2024\/12\/Linux-System-Architecture-300x266.png 300w\" sizes=\"auto, (max-width: 334px) 100vw, 334px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Linux_Kernel_and_Its_Components\"><\/span><strong>Linux Kernel and Its Components<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The operating system is composed of three main parts:<\/p>\n<p><strong>Kernel<\/strong>:<\/p>\n<ul>\n<li>The <strong>heart of the operating system<\/strong>, responsible for communicating with the hardware.<\/li>\n<li>The kernel acts as an intermediary, ensuring that hardware tasks are executed as requested.<\/li>\n<li>It manages hardware resources such as CPU, memory, and I\/O devices.<\/li>\n<\/ul>\n<p><strong>Shell<\/strong>:<\/p>\n<ul>\n<li>The <strong>interface between the user and the kernel<\/strong>, enabling users to interact with the operating system.<\/li>\n<li>Users pass commands via the shell, which then relays these instructions to the kernel.<\/li>\n<li>The shell can be likened to a command prompt in Windows but offers far greater flexibility and functionality.<\/li>\n<\/ul>\n<p><strong>Built-In Utilities<\/strong>:<\/p>\n<ul>\n<li>Provide users with essential tools and commands to perform tasks such as file manipulation, process management, and system configuration.<\/li>\n<\/ul>\n<hr \/>\n<h3><span class=\"ez-toc-section\" id=\"Understanding_the_UNIXLinux_Shell\"><\/span><strong>Understanding the UNIX\/Linux Shell<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The UNIX\/Linux shell is a powerful interface that unlocks the full potential of the operating system. Here\u2019s what you need to know:<\/p>\n<h4><span class=\"ez-toc-section\" id=\"What_is_the_Shell\"><\/span><strong>What is the Shell?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>The shell is a <strong>command-line interface<\/strong> that allows users to interact directly with the operating system.<\/li>\n<li>It is used to manipulate data, run applications, and automate tasks based on specific conditions.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Comparison_to_WindowsDOS_Systems\"><\/span><strong>Comparison to Windows\/DOS Systems<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>While it\u2019s similar to the old <strong>Command Prompt<\/strong> in Windows\/DOS, the shell in UNIX\/Linux is far more robust and versatile.<\/li>\n<li>It supports advanced scripting, automation, and system-level control that goes beyond basic commands.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Different_Flavors_of_Shells\"><\/span><strong>Different Flavors of Shells<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>UNIX\/Linux systems come with <strong>multiple shell types<\/strong>, such as Bash, C Shell, and tcsh.<\/li>\n<li>Each shell performs the same core functions but offers unique features or syntax variations.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Types_of_Shells\"><\/span><strong>Types of Shells<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Linux supports various types of shells, each offering unique features:<\/p>\n<ul>\n<li><strong>Bash (Bourne Again Shell)<\/strong>: The most widely used shell in Linux.<\/li>\n<li><strong>C Shell (csh)<\/strong>: Known for its syntax resembling the C programming language.<\/li>\n<li><strong>tcsh<\/strong>: An enhanced version of C Shell with additional features.<\/li>\n<\/ul>\n<hr \/>\n<h3><span class=\"ez-toc-section\" id=\"Is_Linux_the_Same_as_UNIX\"><\/span><strong>Is Linux the Same as UNIX?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h5><strong>YES, Linux is Like UNIX Because:<\/strong><\/h5>\n<ol>\n<li><strong>Look and Feel<\/strong>:\n<ul>\n<li>Linux has a similar interface and functionality to traditional UNIX systems.<\/li>\n<li>Users familiar with UNIX can easily navigate Linux due to its shared principles and design.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Compatibility<\/strong>:\n<ul>\n<li>Linux can run nearly any program designed for UNIX systems.<\/li>\n<li>It adheres to conventions like <strong>POSIX (Portable Operating System Interface)<\/strong>, ensuring interoperability with UNIX applications.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h5><strong>NO, Linux is Not Exactly UNIX Because:<\/strong><\/h5>\n<ol>\n<li><strong>Kernel Differences<\/strong>:\n<ul>\n<li>The Linux kernel introduces many new features and innovations that go beyond the classical UNIX design.<\/li>\n<li>It is written independently from scratch, without using UNIX code.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Licensing and Philosophy<\/strong>:\n<ul>\n<li>UNIX is proprietary in many of its implementations, whereas Linux is open-source and freely available under the <strong>GPL (GNU General Public License)<\/strong>.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<hr \/>\n<h3><span class=\"ez-toc-section\" id=\"What_is_GNU\"><\/span><strong>What is GNU?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Without GNU, the Linux operating system as we know it wouldn&#8217;t exist. The tools developed under the GNU Project provide the essential functionality needed for system operation and user interaction, making GNU an integral part of Linux distributions.<\/p>\n<ul>\n<li>It represents a collection of free software tools that, combined with the Linux kernel, create a fully functional operating system.<\/li>\n<li>While Linus Torvalds developed the Linux kernel, many essential tools that make Linux usable (e.g., compilers, shell, text editors) come from the GNU Project. Together, the GNU tools and the Linux kernel form what we often call a <strong>Linux distribution<\/strong>.<\/li>\n<li>The GNU Public License (GPL) ensures that: You can freely use, study, and modify the software. You can redistribute the modified software, provided it remains under the GPL terms.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"The_Free_Software_Foundation_FSF\"><\/span><strong>The Free Software Foundation (FSF)`<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>The GNU Project was initiated by Richard Stallman, who founded the Free Software Foundation (FSF).<\/li>\n<li>The goal of the FSF is to promote the development and use of software that can be freely shared and modified.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"The_Significance_of_GNU_Public_License_GPL\"><\/span><strong>The Significance of GNU Public License (GPL)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>The GPL defines how software and its source code can be shared, ensuring the freedom to modify and redistribute the software under the same license.<\/li>\n<li>This licensing philosophy underpins the collaborative nature of Linux and many other open-source projects.<\/li>\n<\/ul>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"Linux_Booting_Process_A_Simple_Explanation\"><\/span><strong>Linux Booting Process: A Simple Explanation<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The process of booting a Linux system involves several stages, each with a unique role in preparing the system for use. Here\u2019s a step-by-step explanation:<\/p>\n<ol>\n<li>Bootloader:\n<ul>\n<li>It is software that manages the start-up process. It identifies the operating system to load.<\/li>\n<li>Finds and <strong>loads the Linux kernel<\/strong> into memory.<\/li>\n<\/ul>\n<\/li>\n<li>Kernel\n<ul>\n<li>It <strong>manages hardware resources<\/strong> such as the CPU, memory, and peripheral devices (like hard drives, printers, etc.) <strong>to start the system<\/strong>.<\/li>\n<li>Acts as a bridge between the hardware and the rest of the system.<\/li>\n<\/ul>\n<\/li>\n<li>Init System\n<ul>\n<li>Once the kernel is loaded, control is handed over to the init system.<\/li>\n<li>The init system <strong>starts user-space processes and manages background services<\/strong> (called daemons).<\/li>\n<li>It ensures necessary services are running and the system is ready for the user.<\/li>\n<\/ul>\n<\/li>\n<li>Daemons\n<ul>\n<li>They are background services that handle system tasks like printing, managing sound, or scheduling.<\/li>\n<li>These services start automatically during boot or after you log in.<\/li>\n<li>It keep the system functional behind the scenes.<\/li>\n<\/ul>\n<\/li>\n<li>Graphical Server\n<ul>\n<li>Commonly known as the X server or just X which is <strong>responsible for displaying graphics<\/strong> on your monitor.<\/li>\n<li>It provides the interface for your desktop environment to interact with the hardware.<\/li>\n<li>Enables the graphical user interface (GUI).<\/li>\n<\/ul>\n<\/li>\n<li>Desktop Environment\n<ul>\n<li>The desktop environment is <strong>what users interact with on the screen<\/strong>.<\/li>\n<li>It comes with built-in tools like file managers, configuration utilities, and web browsers.<\/li>\n<li>It provides a user-friendly interface for interacting with the system.<\/li>\n<\/ul>\n<\/li>\n<li>Applications\n<ul>\n<li>The applications are the <strong>programs you use, such as web browsers, office suites, and media players<\/strong>.<\/li>\n<li>Linux distributions often include app store-like tools (e.g., Ubuntu Software Centre) for easy installation of additional software.<\/li>\n<li>It extend the functionality of the system to meet user needs.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p><strong>Also Read: <a href=\"https:\/\/coderepublics.com\/blog\/redhat\/how-to-install-red-hat-enterprise-linux\/\" target=\"_blank\" rel=\"noopener\">How to Install Red Hat Enterprise Linux<\/a><\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>The Origins of UNIX and Linux UNIX: UNIX was developed at AT&amp;T Bell Labs in 1969 by Ken Thompson and Dennis Ritchie. It became a foundation for many modern operating systems. Linux: In 1991, Linus Torvalds created Linux as a free and open-source operating system inspired by UNIX. It was written independently but adhered to &#8230; <a title=\"Introduction to Linux Operating System: A Comprehensive Guide for Beginners\" class=\"read-more\" href=\"https:\/\/coderepublics.com\/blog\/redhat\/introduction-to-linux-operating-system\/\" aria-label=\"More on Introduction to Linux Operating System: A Comprehensive Guide for Beginners\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":880,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,72],"tags":[76,74,75,73],"class_list":["post-867","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-redhat","tag-introduction-to-linux-operating-system","tag-linux","tag-linux-for-beginners","tag-redhat"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Introduction to Linux Operating System: A Comprehensive Guide for Beginners - CodeRepublics<\/title>\n<meta name=\"description\" content=\"Explore the Linux operating system with this beginner-friendly guide. 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