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Linux Tutorials and Command Line Guides - Page 19

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.

Browse by distribution using the cards below — RHEL family (RHEL, Rocky Linux, AlmaLinux, CentOS, Fedora) and individual APT-based hubs (Ubuntu, Debian, Kali Linux, Linux Mint) — then see featured articles and the full article list.

639 articles

Linux category illustration with terminal, commands, permissions, and troubleshooting features

All Linux articles

linux

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

Deepak Prasad6 min read
linux

10 practical examples to add or remove user from group in Linux

Linux add user to group. Linux remove user from group, remove multiple users from the group, remove users from multiple groups. list users in group Unix and Linux

Deepak Prasad7 min read
linux

How to install Conda on Ubuntu?

Conda is an open source (BSD licensed), language-independent package manager and environment management system that runs on different operating systems

Omer Cakmak6 min read
linux

Install Nodejs and NPM on Raspberry Pi

Step by step instructions to install nodejs and npm on raspberry pi. 2 different methods to install and configure nodejs and npm on raspberry pi

Deepak Prasad6 min read
linux

Install FFprobe and FFmpeg on Ubuntu

Step by Step isntructions to install ffprobe and ffmpeg in Ubuntu using 3 different methods

Omer Cakmak3 min read
linux

Tips to download file From Linux [Practical Examples]

download file terminal, linux download file, terminal download file, download file from linux terminal, command line download file, linux download command, download file from terminal

Omer Cakmak6 min read
linux

Install GlassFish in Arch Linux [Step-by-Step]

Step by Step instructions to install glassfish on Arch Linux with Examples

Omer Cakmak5 min read
linux

How to Install Ubuntu on a USB Drive

Ubuntu is a popular open-source operating system that is widely used in the Linux community. One of the great features of Ubuntu is that it can be installed

Omer Cakmak4 min read
linux

How to PROPERLY disable IPv6 on Ubuntu? [SOLVED]

Today, operating systems also support ipv6. However, when ipv6 is not widely used yet, it may cause problems if it is active in the system. Therefore, it

Omer Cakmak5 min read
linux

How to create or configure network bridge in CentOS / RHEL 7/8

configure network bridge by this step by step guide on CentOS or RHEL 7 linux, configure network bridge using NetworkManager TUI, nmtui.

Deepak Prasad6 min read
linux

Samba Active Directory Setup

Step by step instructions to setup Samba Active Directory on Rocky Linux 8. Join WIndows Client to Samba Domain Controller

Deepak Prasad11 min read
linux

Solved: DHCPDISCOVER fails with 'no free leases' in Linux

You can fix the no free leases error from DHCPDISCOVER by either add more IP address to the range or by cleaning up the lease files for unused entries

Deepak Prasad5 min read
linux

Solved: Change MAC Address in Linux [Temp & Persistent]

Step by Step instructions to change MAC address in Linux. Both temporary and permanent to survive reboot. Assign random or custom defined MAC Address with examples.

Deepak Prasad8 min read
linux

Step-by-Step: Upgrade multiple HPE VC firmware with SUM

Step by step guide to upgrade multiple HPE VC firmware (Virtual Connect) using Smart Update Manager. Perform parallel upgrade of the VC using SUM.

Deepak Prasad10 min read
linux

How to set GRUB2 password using grub2-setpassword (RHEL / CentOS 7)

Steps to set grub2 password using grub2-setpassword for unautorized modification of grub2 entries. Also steps to remove grub2 password from rhel /centos 7

Deepak Prasad3 min read
linux

How to change IO scheduler permanently in Linux

Steps to change IO scheduler permanently in Linux using tuned profile and grub2 kernel or you can change IO scheduler using /sys/block/sdX/queue/scheduler

Deepak Prasad3 min read
linux

/etc/network/interfaces missing in Ubuntu

If you are using Ubuntu, you must have encountered the "/etc/network/interfaces missing" error. Because Ubuntu 18.04 and above uses netplan to configure your

Omer Cakmak4 min read
linux

Linux find File using the command-line [8 Different Ways]

In this tutorial we have covered 8 different methods to find file in Linux using filename, file extension, file type, file size, file's modification date, file permission, file ownership etc

Deepak Prasad8 min read
linux

Install MongoDB on Rocky Linux 8.4 (Step-by-Step)

In this tutorial we will cover the steps to install MongoDB on Rocky Linux.

Deepak Prasad5 min read
linux

Install Oh My Zsh on Linux [Step-by-Step]

Step by Step instructions to install Oh My Zsh on different Linux distributions such as Ubuntu, Red Hat, CentOS, Debian, OpenSuSE, Arch Linux

Omer Cakmak5 min read
linux

Convert CentOS 8 to Rocky Linux 8

As you know, CentOS Linux 8 became the end of life on 31 Dec 2021. It will now continue its life as CentOS Stream 8. Many people/organizations using CentOS

Omer Cakmak5 min read
linux

How to Enable Wake-on-LAN in Ubuntu 22.04? [SOLVED]

In this article we will tell you how to enable Wake-on-LAN in Ubuntu and example usage.

Omer Cakmak4 min read
linux

Install MongoDB on AlmaLinux 8 [Step-by-Step]

Step by Step instructions to install mongodb on AlmaLinux 8. Access mongodb shell, create admin user, establish a connection with mongodb server using a different client. configure firewall and selinux

Deepak Prasad6 min read
linux

Could not resolve host: mirrors.rockylinux.org

3 possible solutions to Could not resolve host: mirrors.rockylinux.org and Failed to connect to mirrors.rockylinux.org port 443: Connection timed out

Omer Cakmak6 min read
linux

Install Rancher on Rocky Linux 9 [Step-by-Step]

Step by step instructions to install rancher on Rocky Linux 9 with screenshots.

Omer Cakmak6 min read
linux

Remove Directory in Linux PROPERLY & SAFELY

In this tutorial I have shared the commands and examples to remove directory in Linux properly without loosing any data. Delete directories and sub directories using single command with and without regex

Deepak Prasad5 min read
linux

Install R on Rocky Linux 8 & 9

Step by Step instructions to install R Programming Language in Rocky Linux. Download and Install specific version of R language

Omer Cakmak5 min read
linux

How to install WSJT-X on Linux Mint? [SOLVED]

WSJT-X is an open-source, free software designed for weak-signal digital communication by amateur radio operators. The software is compatible with various

Omer Cakmak7 min read
linux

How to Keep Alive SSH Sessions in Linux?

Discover best practices to Keep Alive SSH Sessions in Linux with TCP Keep Alive, ServerAliveInterval and ClientAliveInterval settings, ensuring uninterrupted sessions even during network inactivity.

Omer Cakmak13 min read
linux

Solved: Failed to restart network.service: Unit network.service not found in RHEL 8

Network scripts are deprecated in Red Hat Enterprise Linux 8 and they are no longer provided by default. In Red Hat Enterprise Linux 8, to run the ifup and the ifdown scripts, NetworkManager must be running. By default …

Deepak Prasad3 min read