How To Check Your Linux OS Version (Simple Commands That Work Everywhere)

Knowing which Linux version you’re running matters more than it might seem. It affects:

• Which apps you can install
• Which tutorials or troubleshooting steps apply to you
• Whether you’re still getting security updates

The good news: Linux makes this fairly easy to check. The slightly confusing part: there isn’t just one command. Different distributions (distros) and setups can show this info in slightly different ways.

This guide walks through the most reliable ways to check your Linux OS version, explains what each piece of information means, and shows how that can vary from system to system.

What “Linux Version” Actually Means

When people say “Linux version,” they might mean a few different things:

• Distribution (distro) name – e.g. Ubuntu, Debian, Fedora, Arch, Linux Mint
• Distro version – e.g. Ubuntu 22.04, Debian 12, Fedora 40
• Edition / flavor – e.g. Ubuntu Desktop vs Ubuntu Server, Kubuntu vs Xubuntu
• Kernel version – e.g. Linux 6.1.0-20-amd64

Most everyday tasks (installing software, following a guide) depend on the distro name and version, not just the kernel. Kernel version matters more for hardware support and low-level troubleshooting.

When you “check OS version” in Linux, you’re usually reading from system files under /etc that your distro maintains.

Quick Commands To Check Your Linux OS Version

Here are the most commonly useful commands. You can try them all; they’re safe to run in a terminal.

1. Use cat /etc/os-release (Works on Most Modern Distros)

This is one of the most standard ways on modern systems: