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
332 articles
Featured guides in this category
Hand-picked, most-cited tutorials — start here if you're new.
How do I install the Linux library libc.so.6
In this tutorial we learn how do I install the linux library libc.so.6. There are 3 possible scenarios: …
How to check the lock status of any user account in Linux
In this article I will share different methods to check the lock status of a user in Linux or Unix …
![How to install Anydesk on AlmaLinux 8 [Step-by-Step]](/install-anydesk-on-almalinux-8/install_anydesk_hu_1f4ec917374ba52d.webp)
How to install Anydesk on AlmaLinux 8 [Step-by-Step]
Step by step instructions to install anydesk on almalinux 8 with screenshot and examples
Downgrade Ubuntu to previous version?
Step by Step instructions to download Ubuntu to previous release
6 practical examples of yum history to rollback updates and patches
Detailed step by step guide to rollback yum and dnf transactions on Linux server using yum history command. You can undo, redo or completely rollback the system …
7 tools to detect Memory Leaks with Examples
How to detect, capture and monitor memory leak in various applications such as C, C++ or in Linux process. use valgrind, core dump to capture leak information
Easy steps to change default kernel version RHEL/CentOS 8
Step by step instructions to change default kernel from one version to another in RHEL/CentOS 8. You can change from newer to older or vice versa kernel version …
Best practices to update kernel-core in RHEL/CentOS 8
Steps and best practices to update kernel-core and kernel-modules in Red Hat or CentOS 8 using yum and dnf. List and verify default kernel version
How to add Windows Workstation to Samba AD DC (with screenshots)
Step by step tutorial to add Windows Workstation to Samba Active Directory Domain Controller and manage AD using Windows with RSAT
15 steps to setup Samba Active Directory DC CentOS 8
Step by Step tutorial to configure samba active directory domain controller in CentOS 8 Linux. Install Windows AD alternative in Linux. Free domain controller …
6 different commands to restart network in RHEL/CentOS 7/8
The command to restart network in RHEL or CentOS 6,7 and 8 would vary depending upon your network configuration. If you are using NetworkManager then you can …
10+ commands to list all systemctl services with status
In systemd all the services are part of unit files so to list services we must define --type= argument and to get the state of individual services we need …
10 practical examples of tmux configuration with examples
In this tutorial I will use tmux.conf and show different examples to modify your tmux configuration such as define custom prefix key etc
Complete tutorial on tmux commands with examples from scratch
In this tutorial I will cover the basics of tmux from scratch using various tmux commands to create session, windows, splitting panes, killing session etc
3 simple & easy steps to install vlc player on CentOS 8
Step by step tutorial to install vlc player media on linux with and without head for both GUI and CLI mode with examples
grep Exact Match in Linux (Match Whole Word or Exact String)
Learn how to grep exact match in Linux using the grep command. This tutorial explains how to match exact words, exact strings, and entire lines using options …
How to Add User to Sudoers File in Linux
Learn how to add a user to sudoers safely with visudo, sudoers.d drop-in files, command-specific rules, NOPASSWD examples, syntax checks, aliases, and tested …
How to Check Sudo Access for a User in Linux
Learn how to check sudo access in Linux. Check if you or another user has sudo privileges with sudo -l, test sudo access non-interactively in a bash script with …
Dashed Filename in Linux: What It Means and How to Fix It
How to create, read, modify, find and remove dashed filename and directories in Linux. Open and access files & directories starting with (dash) and double dash …