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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Mar 26, 2026 • 2 min read

How to Unzip a .gz File in Linux

Unzip a .gz file in Linux with gzip or gunzip, keep the original file when needed, and extract .tar.gz archives with tar.

Mar 31, 2026 • 7 min read

How to Use Nano, the Linux Command Line Text Editor

Learn the essential nano commands and keyboard shortcuts: open, save, and exit files, search and replace text, copy and paste, and use sudo nano to edit system files.

Apr 3, 2026 • 8 min read

Bash if...else Statement

A complete guide to Bash if, if...else, and if...elif...else statements with practical examples, test operators, and one-line syntax.

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Jun 11, 2026 • 8 min read • new • series

Linux Pipes Explained: How to Use the | Operator

Linux pipes connect command output to another command's input. Learn the | operator, pipefail, stderr piping, xargs, named pipes, and process substitution.

Linux commands connected through a shell pipeline

Jun 10, 2026 • 4 min read

Linux Time Command

This guide shows how to use the Linux time command to measure execution time, explains real/user/sys, and covers Bash, Zsh, and GNU time.

Jun 10, 2026 • 6 min read

How to Add User to Sudoers in Debian

Grant sudo privileges in Debian by adding a user to the sudo group or configuring a custom sudoers rule with visudo. Covers Debian 12 and 13.

Jun 10, 2026 • 4 min read

Uptime Command in Linux

The uptime command shows how long a Linux system has been running, the number of logged-in users, and the load averages for the last 1, 5, and 15 minutes.

Jun 10, 2026 • 8 min read • new

How to Deploy a Node.js Application on Ubuntu 26.04

Deploy a Node.js application on Ubuntu 26.04 using PM2 as the process manager and Nginx as a reverse proxy, with a Let's Encrypt TLS certificate.

Node.js application deployment flow through PM2, Nginx, and HTTPS on Ubuntu 26.04

Jun 10, 2026 • 7 min read

How to Connect to MySQL through SSH Tunnel

Securely connect to a remote MySQL or MariaDB server over an SSH tunnel with local port forwarding, with steps for Linux, macOS, and Windows (PuTTY).

Jun 9, 2026 • 5 min read • new • series

Bash Array Operations: Length, Search, Slice, and Reverse

Practical Bash array operations for checking length, finding values, slicing, reversing, iterating, appending, prepending, and removing elements.

Bash array operations shown as connected length, search, slice, and reverse cards

Jun 8, 2026 • 7 min read • new

pnpm Command: Install and Manage Node.js Packages

This pnpm command guide covers installation, project setup, dependency management, scripts, lockfiles, npm migration, and workspace filtering.

Managing Node.js packages with pnpm commands in a terminal

Jun 7, 2026 • 5 min read

Cron Every 5 Minutes: 5, 10, and 15-Minute Crontab Examples

Run cron every 5 minutes with */5 * * * *. This guide also covers 10 and 15-minute crontab expressions, testing, logging, and overlap prevention.

Jun 7, 2026 • 8 min read • new

How to Install Ansible on Ubuntu 26.04 and Write Your First Playbook

Step-by-step instructions for installing Ansible on Ubuntu 26.04, configuring an inventory, and running your first playbook against remote hosts over SSH.