All Articles
Browse all Linuxize tutorials, guides, and references.
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.
Fix SSH "Host Key Verification Failed" Error
Resolve the SSH Host key verification failed error by removing the stale known_hosts entry with ssh-keygen -R after verifying the server is genuine.
Hard Links vs Symbolic Links in Linux
Understand the difference between hard links and symbolic links in Linux: how inodes work, when each type breaks, and which one to use for a given task.
date Command in Linux: Format, Timezone, and Epoch
Format dates, convert timezones, and work with Unix timestamps using the Linux date command, with copy-paste examples for the terminal and shell scripts.
How to Mount and Unmount File Systems in Linux
Mount and unmount file systems in Linux with the mount and umount commands. Examples cover USB drives, ISO files, NFS shares, bind mounts, and persistent /etc/fstab entries.
Check Linux Version: Find Your Distribution and Kernel Release
Check your Linux version from the terminal with /etc/os-release, hostnamectl, lsb_release, and uname. See when each command is useful.
How to Mount an exFAT Drive on Ubuntu
Modern Ubuntu releases read and write exFAT drives out of the box. This guide shows how to mount exFAT USB drives and SD cards automatically or manually, install exfatprogs, set up an fstab entry, and fix common mount errors.
How to Install NVIDIA CUDA Toolkit on Ubuntu 26.04
Install the NVIDIA CUDA Toolkit on Ubuntu 26.04 from the Ubuntu archive or NVIDIA repository, then verify the driver, nvcc compiler, and CUDA sample output.
How to Edit Your Hosts File on Linux, Windows, and macOS
The hosts file maps domain names to IP addresses locally, overriding DNS. This guide explains how to edit /etc/hosts on Linux, macOS, and Windows with examples for testing, blocking, and local development.
shutdown Command in Linux: Power Off, Reboot, and Schedule
How to use the shutdown command in Linux to power off, halt, or reboot the system immediately or at a scheduled time, with examples of all common options.
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.
