If you are a Linux administrator or developer, knowing how to install and manage kernels is a crucial skill. The kernel is the heart of the operating system, responsible for managing hardware, processes, and system calls. Updating to a newer kernel can provide better hardware support, improved security, and performance enhancements. In this guide, we…
Managing memory effectively is one of the most important aspects of Linux system administration. Whether you are a DevOps engineer, sysadmin, or simply a Linux enthusiast, knowing how to monitor memory usage can help you keep your servers stable and responsive. One of the most commonly used tools for this purpose is the free command….
If you’ve ever worked with Linux, chances are you’ve come across the sed command. It’s one of the most powerful tools for text manipulation, yet many beginners don’t fully explore its potential. In this guide, we’ll cover how to use sed for replacing values in strings, variables, and files. We’ll walk through practical, real-world examples,…
What Is Normal Mode in Vim? Vim is a modal editor, meaning it has multiple modes for different tasks. Normal Mode is Vim’s default state. When you launch Vim and haven’t typed anything yet, you’re in Normal Mode. In Normal Mode, you’re not writing code or text. Instead, you’re giving commands: delete a word, move…
If you are a Linux user, especially on Debian-based systems like Ubuntu, you’ve probably come across .deb files. These packages are the core way software is installed and managed on Debian and its many derivatives. In this guide, we’ll break down everything you need to know about DEB packages — what they are, how to…
Finding Files by Name One of the most common uses for the find command is searching for files by name. Here’s how you can do it: Example 1: Searching for a Specific File To find a specific file named example.txt starting from the current directory, use the command: find . -name “example.txt” Example 2: Case-Insensitive Search If you are…
Introduction Vim is a powerful and versatile text editor widely used in the Linux and Unix environments. Known for its speed and efficiency, Vim is a favorite among developers, system administrators, and power users who work with code and text regularly. In this guide, we will walk you through the basics of using Vim, from…
Linux Basics Quiz – Test Your Linux Skills Online Take our Linux Basics Quiz and evaluate your knowledge of essential Linux commands, file systems, and permissions. This free quiz is perfect for beginners and those preparing for Linux certifications. What You’ll Learn: Key Linux commands (e.g., ls, cd, grep,rm) File management and navigation User permissions…
Introduction Linux is one of the most versatile and widely-used operating systems in the world. With its open-source nature, numerous distributions (or “flavors”) have emerged, each catering to different users and use cases. Whether you’re a beginner exploring Linux for the first time or an advanced user managing enterprise systems, there is a Linux flavor…
Introduction Linux is a powerful and flexible operating system that powers everything from servers and supercomputers to smartphones and personal computers. Understanding how Linux works can give you insight into its efficiency, security, and why it’s a preferred choice for many professionals. This guide explores the inner workings of Linux, breaking down its architecture, processes,…
