Linux Tutorials and Command Line Guides
Learn Linux with step-by-step tutorials, command line examples, and system administration guides for Ubuntu, RHEL, CentOS, and more.
Welcome to the Linux tutorials section, your complete resource for mastering Linux commands and system administration.
This category covers everything from basic commands to advanced system-level operations across multiple distributions such as Ubuntu, RHEL, and CentOS.
Linux is the backbone of modern infrastructure, and understanding it is essential for DevOps, cloud computing, and system administration. You may also explore System Administration and Security for advanced topics.
What you will learn
- Essential Linux commands and tools
- File system and process management
- User and permission management
- Real-world troubleshooting techniques
Ideal for
- Beginners learning Linux
- System administrators
- DevOps engineers
331 articles
Install FFprobe and FFmpeg on Ubuntu [3 Methods]
Step by Step isntructions to install ffprobe and ffmpeg in Ubuntu using 3 different methods
How to ungzip or untar tar.gz file? [SOLVED]
Learn how to untar tar.gz file and ungzip gz archive using gunzip tool.
Install R on Rocky Linux 8 & 9 [Step-by-Step]
Step by Step instructions to install R Programming Language in Rocky Linux. Download and Install specific version of R language
Install Maven on Ubuntu 22.04 [Step-by-Step]
Step by Step instructions to install maven on Ubuntu 22.04
Show Line Numbers in Vim [Absolute, Relative, Hybrid]
vim relative line numbers active using :set relativenumber and :set rnu. relative line numbers inactive using :set norelativenumber and :set nornu. relative …
Steps to Install VSCode on Ubuntu 22.04 [6 Methods]
Step by Step instructions to install Visual Studio Code on Ubuntu 22.04 using 6 different methods
Install Visual Studio Code Rocky Linux 9 [Step-by-Step]
Step by step instructions to install Visual Studio Code on Rocky Linux 9. 4 different methods to install and setup Visual Studio Code
How to List Users in Linux (Complete Guide)
Learn how to list users in Linux using commands like getent, /etc/passwd, compgen, who, and id. This guide explains multiple practical methods to view all …
How to add user to sudoers or sudo group in Ubuntu
In this tutorial will answer all those questions and will also guide to add user to sudo group so that the user can perform tasks which otherwise would be
How to install certbot [Let's Encrypt] on Rocky Linux 9
Step by Step instructions to install and generate certs using Let's Encrypt (certbot) on Rocky Linux 9. Generate and deploy certs for Nginx and Apache server.
pkill -P $$ - Kill subprocess in Linux [SOLVED]
pkill -P $$ is used to match only child processes of the given parent where $$ is the process of the current process
Working with ulimit in Linux [Beginners Guide]
Complete ulimit tutorial to learn about modification of different system limits and configurations without reboot
Install WordPress on Rocky Linux 9 [Step-by-Step]
Step by Step instructions to install wordpress on Rocky Linux 9
Install Eclipse IDE on Rocky Linux 9 [Step-by-Step]
Step by step instructions to install eclipse IDE on Rocky Linux 9
Could not resolve host: mirrors.rockylinux.org [SOLVED]
3 possible solutions to Could not resolve host: mirrors.rockylinux.org and Failed to connect to mirrors.rockylinux.org port 443: Connection timed out