Practical Linux Tutorials and Command-Line Guides

Search hundreds of step-by-step tutorials for Bash, Ubuntu, networking, security, and more.

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GNU Screen terminal multiplexer managing multiple sessions in Linux

Apr 30, 2026 • 7 min read

How to Use Linux Screen

GNU Screen is a terminal multiplexer for managing persistent sessions over SSH. This guide covers sessions, windows, detach/reattach, scrollback mode, and customization.

Use SCP Command to Securely Transfer Files

Apr 24, 2026 • 7 min read

scp Command in Linux: Secure File Transfer Examples

SCP copies files securely between local and remote hosts over SSH. This guide covers syntax, common options, and practical examples for everyday file transfers.

Bash case statement syntax and pattern matching examples

Jul 1, 2026 • 6 min read

Bash case Statement: Match Patterns in Shell Scripts

The Bash case statement matches a value against a list of patterns and runs the corresponding block. This guide explains argument parsing, syntax, glob patterns, multiple matches, and fall-through behavior.

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Sep 19, 2026 • 4 min read

How to Install Google Chrome Web Browser on Ubuntu 24.04

Step-by-step instructions for downloading, installing, updating, and managing Google Chrome on Ubuntu 24.04 using the official .deb package and repository.

Sep 19, 2026 • 9 min read

What Is localhost? 127.0.0.1 and Loopback Explained

Localhost connects programs back to your own computer through 127.0.0.1 or ::1. See how loopback addresses, ports, /etc/hosts, and 0.0.0.0 work on Linux.

What is localhost and how the loopback interface works

Sep 19, 2026 • 5 min read

How to Install Google Chrome on Ubuntu 26.04

Install Google Chrome on Ubuntu 26.04 from the official .deb package, set it as the default browser, and keep it updated from the Google repository.

Browser window and download icons illustrating Google Chrome installation on Ubuntu 26.04

Sep 19, 2026 • 8 min read • series

How to Pass Arguments to a Bash Script

Read command-line input in Bash: positional parameters, $@ versus $*, default values, named --options, getopts, and fixes for common argument errors.

Bash script arguments represented as connected command-line parameters

Sep 18, 2026 • 8 min read • new

nice and renice Commands in Linux: Set Process Priority

Control Linux process priority with nice and renice. See how nice values work, start lower-priority jobs, and change the priority of running processes.

CPU tile beside a nice-value slider ranging from -20 to 19

Sep 18, 2026 • 8 min read

How to List and Delete UFW Firewall Rules

List UFW firewall rules with ufw status and ufw show, then delete them by number or by specification. Covers numbered output, the show reports, rule reset, and SSH lockout recovery.

Sep 18, 2026 • 12 min read

How to Mount an NFS Share in Linux

Step-by-step instructions for mounting an NFS share in Linux: install the client, mount manually, persist with /etc/fstab, and troubleshoot common errors.

Sep 18, 2026 • 7 min read

How to Install Java on Ubuntu 24.04

Install Java 25, Java 21, and Oracle JDK on Ubuntu 24.04. This guide covers OpenJDK packages, default Java selection, and JAVA_HOME setup.

Sep 16, 2026 • 12 min read

ripgrep Command in Linux: Fast Recursive Search

The ripgrep command searches directories recursively while respecting ignore files. This guide explains rg syntax, file type filters, context lines, replacement previews, and config defaults.