--- title: "Elavarasan A (@thearasu) | Hashnode" description: "Linux and security admin. Read the latest articles by Elavarasan A on Hashnode." url: "https://hashnode.com/@thearasu" --- @thearasu # Elavarasan A @thearasu · Chennai, India · Joined September 2023 Linux and security admin [Website](https://foss.guru/) ### [Linux 101: (2) History of Linux](https://foss.guru/linux-101-2-history-of-linux?utm_source=hashnode&utm_medium=feed) Explore the fascinating history of Linux, from its Unix roots to modern distributions like Debian, RedHat, and Ubuntu 1 min read · [foss.guru](https://foss.guru/linux-101-2-history-of-linux?utm_source=hashnode&utm_medium=feed) [Dec 28, 2024](https://hashnode.com/posts/linux-101-2-history-of-linux/67704c9a95630fd0299ddde4) ### [Linux 101: (1) What is an operating system and what does it do?](https://foss.guru/linux-101-1-what-is-an-operating-system-and-what-does-it-do?utm_source=hashnode&utm_medium=feed) Explore what an operating system is and the key roles it plays in managing computer resources 1 min read · [foss.guru](https://foss.guru/linux-101-1-what-is-an-operating-system-and-what-does-it-do?utm_source=hashnode&utm_medium=feed) [Dec 28, 2024](https://hashnode.com/posts/linux-101-1-what-is-an-operating-system-and-what-does-it-do/67703e01d559e623839e30c0) ### [The Filesystem Hierarchy Standard (FHS)](https://foss.guru/the-filesystem-hierarchy-standard-fhs?utm_source=hashnode&utm_medium=feed) Learn about the Filesystem Hierarchy Standard (FHS) for organizing directory structures in Unix-like operating systems 2 min read · [foss.guru](https://foss.guru/the-filesystem-hierarchy-standard-fhs?utm_source=hashnode&utm_medium=feed) [Dec 20, 2024](https://hashnode.com/posts/the-filesystem-hierarchy-standard-fhs/6765dfa31c03160c1792ead3) ### [Linux Boot process: Simplified](https://foss.guru/linux-boot-process-simplified?utm_source=hashnode&utm_medium=feed) Learn about the Linux boot process from BIOS/UEFI to the init system to understand how the operating system loads and prepares for use 3 min read · [foss.guru](https://foss.guru/linux-boot-process-simplified?utm_source=hashnode&utm_medium=feed) [Dec 20, 2024](https://hashnode.com/posts/linux-boot-process-simplified/6765de69be3c3ee6e7b58f80)