Practical Linux Tutorials and Command-Line Guides

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

Featured Articles

Apr 4, 2026 • 6 min read

Bash Functions

How to define and use Bash functions, pass arguments, return values, and apply best practices for writing cleaner and more maintainable scripts.

May 16, 2026 • 8 min read

How to Use wget in Linux with Examples

Step-by-step wget tutorial covering downloads, resuming, recursive mirroring, authentication, and the most useful options.

May 1, 2026 • 4 min read

How to Show Line Numbers in Vim and Vi

Display line numbers in Vim or Vi for the current session, make them permanent in .vimrc, and switch between absolute, relative, and hybrid numbering.

Linuxize Weekly Newsletter

A quick weekly roundup of new tutorials, news, and tips.

Latest Articles

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Jun 4, 2026 • 5 min read • new

Fix "sudo: command not found" on Linux

How to fix the 'sudo: command not found' error on Linux by installing the sudo package, adding your user to the right group, and recovering from a broken PATH.

Fixing the sudo command not found error on Linux

Jun 3, 2026 • 10 min read • new

Podman vs Docker: Differences and Migration Guide

This guide compares Podman and Docker across architecture, rootless containers, systemd integration, Compose workflows, image builds, and migration planning.

Jun 3, 2026 • 10 min read

How to Back Up and Restore MySQL Databases with Mysqldump

Step-by-step guide to backing up and restoring MySQL and MariaDB databases using the mysqldump utility. Covers single and full backups, compressed backups, restoring dumps, and automating backups with cron.

Backing up and restoring MySQL databases with mysqldump from the command line

Jun 2, 2026 • 5 min read • new

pip vs apt: Installing Python Packages on Linux

This guide explains when to use pip or apt for Python packages on Ubuntu and Debian, why sudo pip install is risky, and where virtual environments fit.

pip and apt package manager cards for Python packages on Linux

Jun 2, 2026 • 4 min read

Grep Multiple Patterns: Match Strings, Words, and Regex

Search for multiple patterns or strings at once with grep using the -e flag, fixed-string matching, alternation, and pattern files.

Grep Multiple Strings, Words, and Patterns

Jun 2, 2026 • 5 min read

chgrp Command in Linux: Change File Group Ownership

The chgrp command changes the group ownership of files and directories in Linux. This guide covers syntax, recursive changes, symlink handling, and practical examples.

Using the chgrp command to change group ownership in Linux

Jun 1, 2026 • 5 min read • new

dpkg Command in Linux: Install and Manage Debian Packages

Use dpkg to install, remove, query, and inspect Debian packages on Ubuntu, Debian, and other Debian-based distributions.

dpkg package management cards for installing, querying, and removing deb packages

May 31, 2026 • 4 min read • new • series

How to Pass Arguments to a Bash Script

This guide explains how to pass arguments to Bash scripts, read positional parameters, loop over $@, set defaults, validate input, and parse flags with getopts.

Bash script arguments represented as connected command-line parameters

May 31, 2026 • 4 min read

reboot Command in Linux: Restart with systemctl and shutdown -r

Three commands cover common Linux reboot scenarios: reboot for an immediate restart, systemctl reboot for the systemd path, and shutdown -r for scheduled restarts with user notifications.

Rebooting a Linux system from the command line using systemctl and shutdown

May 31, 2026 • 5 min read • series

Bash source Command: Load Scripts and Variables

The Bash source command executes a file in the current shell environment, making its variables and functions available to the calling script. This guide covers syntax, common uses, and practical examples.