how to check the linux os version

Jordan Emanuel

2 min read

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06-09-2024

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If you're diving into the world of Linux, knowing your operating system version is essential. This information can help you understand the capabilities of your system, troubleshoot issues, and ensure compatibility with software. In this guide, we’ll explore different methods to check the Linux OS version easily.

Why Knowing Your OS Version Matters

Just as knowing your car's model can help you find the right parts, understanding your Linux OS version can:

• Help in Software Installation: Certain applications require specific versions of Linux.
• Troubleshoot Issues: Knowing your version can aid in identifying compatibility issues.
• Plan Upgrades: If your version is outdated, you might consider an upgrade for enhanced security and features.

Checking the Linux OS Version

There are several straightforward methods to check your Linux version. Here are the most common approaches:

Method 1: Using the lsb_release Command

The lsb_release command provides detailed information about your Linux distribution.

1. Open Terminal: You can access it using Ctrl + Alt + T on most distributions.

2. Enter the Command: Type the following command and press Enter:

   lsb_release -a
   

   This will display output similar to:

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

Method 2: Checking the /etc/os-release File

Most Linux distributions include an os-release file that contains version information.

1. Open Terminal: As before, access it using Ctrl + Alt + T.

2. Type the Command: Use the following command to read the file:

   cat /etc/os-release
   

   This will show you information like:

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

Method 3: Using the hostnamectl Command

For systems using systemd, the hostnamectl command can also reveal version details.

1. Open Terminal.

2. Execute the Command:

   hostnamectl
   

   You should see output that includes the Operating System and Kernel information, such as:

   Operating System: Ubuntu 20.04 LTS
   Kernel: Linux 5.4.0-26-generic
   

Method 4: Using the uname Command

If you need information about the Linux kernel version specifically, you can use uname.

1. Open Terminal.

2. Input the Command:

   uname -a
   

   This will display something like:

   Linux ubuntu 5.4.0-26-generic #30-Ubuntu SMP Fri May 1 17:20:01 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
   

Conclusion

Knowing how to check the Linux OS version is a vital skill for any Linux user. By using commands like lsb_release, cat /etc/os-release, hostnamectl, or uname, you can quickly find essential information about your system. This knowledge enables you to manage your Linux environment effectively, ensuring optimal performance and compatibility.

Additional Resources

• Understanding the Linux File System
• Guide to Installing Software on Linux
• Top 10 Linux Distributions for Beginners

Feel free to explore these articles for a deeper understanding of Linux! Whether you're troubleshooting or simply curious about your system, knowing your OS version is just the first step on your journey through the world of Linux. Happy exploring!