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
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
Set up KVM PXE server to perform network boot RHEL CentOS 8
Step-by-Step tutorial to setup KVM PXE Server to perform qemu netboot for Virtual machines. Use virt-install pxe to network boot KVM Virtual Machines in Linux
KVM Virtualization | Install KVM | RHEL/CentOS 8
KVM Tutorial. Steps to install KVM (Kernel Based Virtual Machine) in RHEL/CentOS 8 Linux. Learn about KVM Hypervisor and KVM virtualization.
Install GNOME | How to enable GUI mode | RHEL CentOS 8
Steps to install gnome desktop environment in RHEL CentOS 8 for workstation and server with gui. Enable and start GUI mode, command to switch GUI mode linux
Configure kickstart server | PXE boot server | RHEL/CentOS 8
PXE boot server configuration in linux step by step, kickstart linux tutorial, configure kickstart server, network based installation in linux using kickstart
10 easy steps to setup High Availability Cluster CentOS 8
Step-by-Step Guide to setup Linux High Availability Cluster in CentOS 8 using system_id_source uname. Configure pacemaker, corosync and linux HA cluster.
Automate SFTP using shell script with password in Linux/Unix
Steps to automate SFTP using shell script with password and expect with examples SFTP command example in Unix shell script with passwordless authorized_keys
5+ practical examples to learn sticky bit in Linux
What is Unix or Linux Sticky Bit special permission. How to apply sticky bit for directories and files. What is the difference between small 't' and capital "T" …
Tutorial: Beginners guide on Linux Memory Management
Understand various terminologies with linux memory management, dirty page, swapping, inactive, active memory, Translation Lookaside Buffers (TLB), page cache
5 tools to create bootable usb from iso linux command line and gui
Learn to create bootable usb from iso linux command line. dd iso to usb burn iso to usb linux ubuntu debian. how to make bootable pendrive in linux
Beginners guide to install Ansible on RHEL/CentOS 8
Step by step tutorial to install ansible on RHEL 8 or CentOS 8 Linux. Configure ansible.cfg, create static inventory and run ad-hoc commands yum install ansible …
How to perform tar incremental backup with example in Linux
Learn about tar incremental backup with examples in Linux. You can use tar incremental backup script to automate tasks for backup and recovery in Linux/Unix
[5 Solutions] another app is currently holding the yum lock
With yum we get "another app is currently holding the yum lock" or "Existing lock /var/run/yum.pid: another copy is running as pid XXX". To fix this you can..