Practical Linux Tutorials and Command-Line Guides

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

Featured Articles

May 4, 2026 • 6 min read

How to Check File and Directory Size in Linux

Check file and directory sizes in Linux with du. This guide covers readable totals, subdirectory sizes, sorting by size, exclusions, and file size checks.

Mar 11, 2026 • 9 min read

chown Command in Linux: Change File Ownership

Use the chown command in Linux to change file and directory ownership, including recursive changes, symbolic links, and practical ownership examples.

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.

Linuxize Weekly Newsletter

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

Latest Articles

View all articles

Jul 9, 2026 • 4 min read

How to Check Your Ubuntu Version

Check which Ubuntu version you are running with lsb_release, /etc/os-release, or hostnamectl, plus a current release list up to Ubuntu 26.04 LTS.

Terminal commands used to check the Ubuntu version

Jul 9, 2026 • 7 min read • new • series

Bash Parameter Expansion: Defaults, Substrings, and Replacement

Bash parameter expansion handles default values, substrings, string length, pattern trimming, search and replace, and case conversion, all inside the shell.

Bash parameter expansion syntax examples in a Linux terminal

Jul 8, 2026 • 11 min read

htop Command in Linux: How to Monitor and Manage Processes

Monitor Linux processes in real time with htop: read CPU and memory meters, sort and filter the process list, and kill or renice processes from one screen.

Using the htop command to monitor processes interactively in Linux

Jul 8, 2026 • 4 min read • series

How to Concatenate Strings in Bash

Concatenate strings in Bash by placing variables side by side, appending with the += operator, or formatting with printf -v. Includes examples for variables, literals, and command output.

Jul 8, 2026 • 7 min read • new

smartctl Command in Linux: Check Disk Health with SMART

Use smartctl in Linux to check SMART health, read disk attributes, run self-tests, troubleshoot USB enclosures, and monitor NVMe wear.

Checking disk SMART health with smartctl in a Linux terminal

Jul 8, 2026 • 10 min read

find Command in Linux: Search Files and Directories

The find command searches for files and directories by name, type, size, date, permissions, and more. This guide covers practical examples including wildcards, exec actions, and combining find with grep.

Using the find command to search for files and directories in Linux

Jul 7, 2026 • 6 min read • new

What Is Load Average in Linux: 1, 5, and 15 Minute Averages

Load average explained for Linux: what the three numbers from uptime and top mean, how they relate to CPU cores, and how to tell a busy system from an overloaded one.

Reading the 1, 5, and 15 minute load averages on a Linux system

Jul 6, 2026 • 8 min read

How to Extract (Unzip) tar.gz Files in Linux

Extract tar.gz and tgz archives with the tar command. Covers extracting to a directory, pulling specific files, wildcards, stdin piping, and listing archive contents.

Extracting tar.gz files in Linux with the tar command

Jul 6, 2026 • 6 min read • new

How to Install Claude Code on Ubuntu and Linux

Install Claude Code on Ubuntu, Debian, and other Linux distributions using the recommended native installer, official package-manager repositories, or npm.

Installing the Claude Code AI coding assistant in a Linux terminal on Ubuntu

Jul 6, 2026 • 5 min read

How to Create a Directory in Linux: mkdir Command Examples

Create single, multiple, and nested directories in Linux with mkdir, set permissions with -m, and fix 'Permission denied' and 'No such file or directory' errors.