how to check the os version in linux

David Muir

2 min read

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06-09-2024

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Checking the operating system (OS) version in Linux is crucial for system administration and troubleshooting. Just like checking the ingredients before cooking a recipe, knowing your OS version helps ensure compatibility and security for the software you plan to use. This guide will walk you through various methods to check your Linux OS version in a clear and easy-to-understand manner.

Why You Need to Know Your OS Version

Knowing your OS version is important for several reasons:

• Software Compatibility: Some applications require specific versions of the OS.
• Security Updates: Staying informed about the latest updates can help secure your system.
• Troubleshooting: When you encounter issues, knowing the OS version can assist in finding solutions.

Methods to Check the OS Version

There are several methods to check the OS version on Linux. Each method is like a different tool in your toolbox—choose one that best suits your situation!

1. Using the Command Line

The command line is often the quickest way to obtain information about your OS. Here are a few commands to try:

a. lsb_release -a

This command provides detailed information about your distribution.

lsb_release -a

Output Example:

Distributor ID: Ubuntu
Description:    Ubuntu 20.04.1 LTS
Release:        20.04
Codename:       focal

b. /etc/os-release

This file contains information about the OS and its version.

cat /etc/os-release

Output Example:

NAME="Ubuntu"
VERSION="20.04 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian

c. uname -a

This command shows system information, including the kernel version.

uname -a

Output Example:

Linux hostname 5.4.0-42-generic #46-Ubuntu SMP Thu Aug 6 08:50:42 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

2. Checking System Settings

For those who prefer a graphical interface:

• Ubuntu: Go to Settings > About. Here you will find information about your OS version and system specifications.
• Fedora: Click on Settings > Details to view your OS version.

3. Using a GUI Tool

Some Linux distributions come with a built-in GUI tool that displays system information.

• System Information Tool: Many distributions include a tool called "System Information" or similar in their application menu. Open it, and you will see details about your OS version.

Conclusion

Checking the OS version in Linux can be done in various ways, whether you're a command line enthusiast or prefer using a graphical interface. Understanding your OS version is vital for maintaining and troubleshooting your system effectively.

Quick Recap:

• Use lsb_release -a, cat /etc/os-release, or uname -a in the command line.
• Alternatively, check the system settings in your GUI or use the system information tool.

Now you can confidently check your Linux OS version whenever needed! If you have more questions or want to dive deeper into Linux system management, check out our other articles here. Happy exploring!