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
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 with best practices & examples
How to add user to sudoers file? How to give root privileges to a user in linux? how to give superuser permission in linux? sudoers syntax with examples
4 easy methods to check sudo access for user in Linux
How to check sudo access for a normal user? Is it possible to know if a user has sudo access using a script without password prompt?
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 …
What is tar --strip-components & zip --junk-paths with examples in Linux
How to use tar --strip-components and zip --junk-paths with examples to strip absolute path in Linux and Unix. Force unzip / zip not to create a subdirectory
Step-by-Step: YUM install specific version of Package
How to yum install specific version of rpm in Linux. yum show installed packages, yum search package, install specific version of rpm with yum or dnf. yum …
How to disable ICMP timestamp responses in Linux
Iptables rule to disable ICMP timestamp responses in Linux. Block ICMP timestamp request (13) and ICMP timestamp reply (14). Verify using hping3 or nping