All Articles
Browse all Linuxize tutorials, guides, and references.
How to Check if a Command Exists in Bash
Check whether a command exists in Bash with command -v, capture its path, validate several dependencies, and compare type, hash, and which.
setuid, setgid, and the Sticky Bit Explained
Understand the setuid, setgid, and sticky bit special permissions in Linux: what each one does on files and directories, how to set them, and the security risks.
Delete Files and Directories in Python: os, pathlib, and shutil
How to delete single files, match and remove files by pattern, and remove directories in Python using the os, pathlib, and shutil modules.
How to Rename Files and Directories in Linux
Rename files and directories in Linux using mv for single renames and rename for batch filename changes, including extension changes, case conversion, and safe previews.
modprobe Command in Linux: Load and Manage Kernel Modules
Manage Linux kernel modules with modprobe: load, unload, blacklist, and configure module parameters. Includes syntax, practical examples, and troubleshooting.
How to Set Git Username and Email with git config
Set Git username and email with git config, both globally and per repository, check the current values, and update existing settings.
GitHub CLI: Manage Repositories, Issues, and Pull Requests
Use GitHub CLI to create and clone repositories, manage pull requests and issues, inspect workflow runs, publish releases, and call the GitHub API.
How to Comment in Python
Comments make Python code easier to read and maintain. This guide explains how to write single-line comments, multiline comments, docstrings, and the shebang line.
How to Install Caddy on Ubuntu 26.04
Install Caddy on Ubuntu 26.04 from the official repository, then configure automatic HTTPS, static sites, reverse proxying, systemd, and logs.
How to Check if a File or Directory Exists in Python
Check whether a file or directory exists in Python using pathlib, os.path, or try-except, with examples that avoid race conditions.
curl vs wget: Differences and When to Use Each
Compare curl vs wget defaults, protocols, redirects, recursive downloads, API requests, and resume options to choose the right command for each task.
PostgreSQL Backup and Restore with pg_dump and pg_restore
Use pg_dump, pg_restore, and pg_dumpall to back up and restore PostgreSQL databases, including custom formats, parallel jobs, remote hosts, and test restores.
How to Install pip on Debian 11, 12, and 13
Step-by-step instructions for installing pip3 on Debian 11, 12, and 13 using apt, with examples for installing, upgrading, and removing Python packages.
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.
How to Install Python Pip on Ubuntu
Install pip on Ubuntu with a single apt command. Covers python3-pip setup, virtual environments, and common pip commands for managing Python packages.
/etc/passwd in Linux: File Format and Fields Explained
The cat /etc/passwd command displays local Linux accounts. This guide explains its seven fields and when to use getent passwd instead.
Bash Exit Command and Exit Codes
The Bash exit command terminates a shell or script and returns an exit code. This guide covers exit status, the $? variable, exit code conventions, set -e, and practical script examples.
TCP vs UDP: Differences and When to Use Each
Compare TCP vs UDP reliability, ordering, overhead, common ports, and use cases, with Linux ss commands for checking which transport a service uses.
at Command in Linux: Schedule One-Time Tasks
The at command schedules one-time tasks to run at a specific time in Linux. This guide covers syntax, time formats, batch jobs, listing and removing jobs, and user restrictions.
How to Add a Git Remote
Add a new remote to a Git repository with git remote add, then list, inspect, and push to it. Includes common errors and a git remote command reference.
