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Browse all Linuxize tutorials, guides, and references.
zip Command in Linux: Zip Files and Directories
Create ZIP archives in Linux with the zip command. This guide covers files, directories, recursive archives, compression levels, exclusions, passwords, and split ZIP files.
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.
cd Command in Linux: Change Directories
Use the cd command in Linux to change directories, move to parent and home folders, switch back to the previous directory, and work with absolute or relative paths.
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.
.gitignore: Ignore Files and Folders in Git
Use .gitignore to ignore folders, files, logs, and build output in Git. See folder patterns, global rules, tracked-file cleanup, and debugging commands.
Initial Server Setup on Ubuntu 26.04
Prepare a new Ubuntu 26.04 server with a sudo user, SSH key authentication, UFW firewall rules, a hostname, timezone settings, and system updates.
Bash break and continue Statements
The break and continue statements in Bash control loop execution. Use break to exit a loop early and continue to skip the current iteration.
su Command in Linux: Switch User
The su command in Linux switches users in the current session and runs commands with another user's privileges. Examples, options, and a sudo vs su comparison.
How to Add APT Repository in Ubuntu
Add APT repositories in Ubuntu using add-apt-repository, the signed-by method, and PPA. Includes the DEB822 format used by default on Ubuntu 24.04 and 26.04.
netstat Command in Linux: Network Connections and Statistics
Use the netstat command to list network connections, listening ports, routing tables, interface counters, and TCP states on Linux.
fsck Command in Linux: Check and Repair Filesystems
Use the fsck command in Linux to check and repair filesystems safely, run read-only checks, fix unmounted partitions, and schedule boot-time checks.
cat Command in Linux with Examples
Use the cat command in Linux to view files, combine files, create text files, show line numbers, and inspect hidden characters.
Netcat (nc) Command in Linux with Examples
Use the Netcat nc command in Linux to scan ports, listen for connections, transfer files, test TCP and UDP services, and set connection timeouts.
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.
Python venv: How to Create and Use Virtual Environments
Python's venv module creates isolated environments so each project can pin its own package versions. This guide covers python -m venv, activating and deactivating, managing dependencies with requirements.txt, and when to reach for virtualenv, uv, or pipx instead.
ln Command in Linux: Create Symbolic Links
The ln command creates symbolic links on Linux, giving you a stable name that points to a moving target. This guide covers creating, updating, and cleaning up symlinks, plus the -sfn pattern used for atomic deploys.
What Does chmod 777 Mean
chmod 777 gives every user on the system full access to a file or directory. This guide explains what 777 means, how Linux permission numbers work, and what to use instead.
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.
Things to Do After Installing Ubuntu 26.04
A practical checklist for setting up Ubuntu 26.04 after installation, including updates, drivers, codecs, Flatpak, backups, firewall settings, and desktop tweaks.
How to Install Ubuntu 26.04
Step-by-step instructions for installing Ubuntu 26.04 from a bootable USB drive, covering ISO download, installer screens, disk setup, and first boot.
