How to Check OS Version in Linux: 7 Easy Methods
Windows GuidesINTRODUCTION
Linux is available in many distributions, including Ubuntu, Debian, Fedora, Linux Mint, and Arch Linux. Each distribution has its own release cycle, features, and system requirements. That is why knowing your installed operating system version is important when installing software, fixing errors, updating packages, or following technical instructions.
If you are wondering how to check OS version in Linux, you can find the information through simple terminal commands or your desktop settings. You do not need advanced Linux knowledge for these methods.
In this guide, you will learn seven practical ways to identify your Linux distribution, release number, and kernel version. You will also understand the difference between an OS version and a kernel version so you can find the exact information you need.
Why You Should Know How to Check OS Version in Linux
Knowing your Linux version helps you manage your computer and troubleshoot technical problems more effectively. Many applications support specific Linux distributions or require a particular release.
Here are some common reasons to check your system information:
- Software compatibility: Confirm that an application supports your installed Linux distribution.
- System updates: Check whether your operating system is running an older release.
- Troubleshooting: Share accurate system information when asking for technical support.
- Driver installation: Identify your distribution before installing hardware drivers.
- Security: Find out whether your Linux release is still receiving security updates.
- Technical instructions: Follow the correct steps for Ubuntu, Debian, Fedora, or another distribution.
For example, instructions written for Ubuntu may not work exactly the same way on Fedora. Checking your release first can help you avoid unnecessary errors.
How to Check OS Version in Linux Using Terminal Commands
The Linux terminal provides several reliable ways to find your operating system details. Open Terminal using your desktop application menu or a keyboard shortcut, then try the following methods.
1. Check Linux Version Using the /etc/os-release File
The /etc/os-release file contains standard operating system identification information. It is available on most modern Linux distributions.
Open Terminal and run:
cat /etc/os-releaseYou may see output similar to this:
NAME="Ubuntu"
VERSION="24.04.1 LTS (Noble Numbat)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 24.04.1 LTS"
VERSION_ID="24.04"Here is what the main fields mean:
| Field | Meaning |
|---|---|
| NAME | Linux distribution name |
| VERSION | Full release information |
| ID | Short distribution identifier |
| ID_LIKE | Related distribution family |
| PRETTY_NAME | User-friendly operating system name |
| VERSION_ID | Distribution version number |
This is one of the easiest ways to identify your Linux distribution and its release.
2. Use the lsb_release Command
Another useful method is the lsb_release command. It displays Linux Standard Base distribution information when the command is installed.
Run:
lsb_release -aExample output:
Distributor ID: Ubuntu
Description: Ubuntu 24.04.1 LTS
Release: 24.04
Codename: nobleYou can also use individual options to display specific details:
lsb_release -dThis displays the distribution description.
lsb_release -rThis displays the release number.
Note: Some minimal Linux installations do not include lsb_release by default. If the command is unavailable, use /etc/os-release instead.
3. Check Linux Version with hostnamectl
The hostnamectl command displays information about the system hostname and operating system. On systems using systemd, it can provide useful operating system details.
Run:
hostnamectlLook for output similar to:
Operating System: Ubuntu 24.04.1 LTS
Kernel: Linux 6.x.x
Architecture: x86-64The exact output depends on your distribution and system configuration.
This command is particularly helpful when you want to see the operating system, kernel, and hardware architecture together.
4. Find the Linux Kernel Version Using uname
Sometimes you need the kernel version rather than the Linux distribution release. The uname command helps you identify the kernel currently running on your computer.
Run:
uname -rExample:
6.8.0-xx-genericTo display more complete system information, use:
uname -aThis command can show the kernel name, hostname, kernel release, kernel version, machine architecture, and other system details.
Remember that the kernel version and distribution version are different. For example, your computer may run Ubuntu 24.04 with a Linux 6.x kernel.
5. Check the Linux Version Using /etc/issue
The /etc/issue file may contain a short message identifying your Linux distribution.
Run:
cat /etc/issueExample output:
Ubuntu 24.04.1 LTSThis method is quick, but the file can be customized by the system administrator. For more complete and standardized information, /etc/os-release is generally a better choice.
6. Check Linux Version Through Desktop Settings
If you do not want to use terminal commands, you can often find your Linux version through the graphical settings.
The exact steps depend on your desktop environment.
On Ubuntu:
- Open the application menu.
- Search for Settings and open it.
- Scroll down to the About section.
- Look for the operating system name and version.
- Check the device information if you also need hardware details.
On Linux Mint:
- Open the main menu.
- Search for System Info.
- Open the System Information application.
- Review the distribution and system details.
On Fedora:
- Open Settings.
- Select About.
- Review the operating system and hardware information.
This is a convenient option for beginners who prefer graphical tools.
7. Check Distribution-Specific Version Files
Some Linux distributions provide additional files that contain release information.
For example, on Debian-based systems, you can try:
cat /etc/debian_versionOn some Red Hat-based systems, you may find:
cat /etc/redhat-releaseThe availability and contents of these files depend on the distribution.
If you are unsure which file your system supports, start with:
cat /etc/os-releaseIt is a more widely standardized option across modern Linux distributions.
Comparison of 7 Linux Version Checking Methods
Different commands provide different types of system information. Use this table to choose the method that best matches your needs.
| Method | Command or location | Information provided | Best for |
|---|---|---|---|
| OS release file | cat /etc/os-release | Distribution and release | Most users |
| LSB release | lsb_release -a | Distribution and codename | Detailed identification |
| hostnamectl | hostnamectl | OS, kernel, architecture | Complete system overview |
| uname | uname -r | Kernel release | Kernel checks |
| Issue file | cat /etc/issue | Short distribution information | Quick identification |
| Desktop settings | Settings → About | OS and device details | Beginners |
| Release files | Distribution-specific commands | Release information | Specific Linux families |
My recommendation: Start with cat /etc/os-release. It is simple, widely supported, and usually provides the distribution name and release number you need.
Linux OS Version vs. Kernel Version: What Is the Difference?
These two terms are related, but they do not mean the same thing.
The Linux distribution version identifies the operating system release you have installed. For example, Ubuntu 24.04 or Debian 12.
The Linux kernel version identifies the version of the core software that manages communication between your hardware and applications.
Here is a simple comparison:
| Feature | OS Version | Kernel Version |
|---|---|---|
| Identifies | Linux distribution release | Linux kernel release |
| Example | Ubuntu 24.04 | Linux 6.x |
| Used for | Distribution compatibility and updates | Hardware and kernel troubleshooting |
| Common command | cat /etc/os-release | uname -r |
If an application asks for your Ubuntu version, do not provide only the output of uname -r. Check the distribution release instead.
Common Problems When Checking Linux Version
Sometimes a command may not work or may display unexpected information. Here are some common issues and their solutions.
The lsb_release Command Is Not Found
If you receive a message saying that lsb_release is unavailable, your system may not have the required utility installed.
Use this alternative:
cat /etc/os-releaseYou can also install the appropriate package through your distribution’s package manager if you specifically need the LSB command.
The OS Version Looks Different from a Tutorial
Linux distributions receive updates, and their displayed release information can vary. A tutorial may show a slightly different point release or kernel number.
Check your actual release using:
cat /etc/os-releaseThen compare the result with the official documentation for your distribution.
The Kernel Version Does Not Match the OS Version
This is normal. A Linux distribution can receive kernel updates without changing its major distribution release.
Use both commands when troubleshooting:
cat /etc/os-release
uname -rThe first identifies your distribution, while the second shows the currently running kernel.
You Are Using a Minimal or Server Installation
Some Linux server installations do not include a graphical desktop or optional identification utilities.
In that case, terminal commands such as cat /etc/os-release and uname -r are usually sufficient.
Useful Linux and Windows System Information Guides
Checking system details is an important part of maintaining any computer. If you also use Windows, TechCrown has related guides that may help:
- Read the guide to Windows Experience Index in Windows 11 to understand how Windows system performance is assessed.
- Learn about Windows 11 Debloater if you want to understand tools for managing unnecessary Windows components.
- Visit the TechCrown homepage for more practical technology tutorials and troubleshooting guides.
For Linux-specific information, you can also consult the official Ubuntu documentation, the Debian documentation, and the freedesktop.org os-release specification.
Frequently Asked Questions
1. What is the easiest way to check OS version in Linux?
The easiest method is to open Terminal and run:
cat /etc/os-releaseIt usually displays your Linux distribution name, release number, and other identification details.
2. How do I check whether my Linux is Ubuntu or Debian?
Run:
cat /etc/os-releaseLook for the NAME, ID, and PRETTY_NAME fields. They identify your distribution.
3. How can I check my Linux kernel version?
Use:
uname -rIt displays the currently running Linux kernel release.
4. Can I check my Linux version without Terminal?
Yes. Open your desktop Settings and look for the About section. Some distributions also provide a System Information application.
5. Does the Linux OS version change when the kernel updates?
Not necessarily. The distribution release and kernel release are separate. Your Linux kernel can receive updates while the main distribution version stays the same.
6. Which command works on most Linux distributions?
cat /etc/os-release is a good first choice because modern Linux distributions commonly provide this standardized file.
7. Why do I need to know my Linux distribution version?
It helps you install compatible applications, follow the correct tutorials, troubleshoot system problems, and check whether your operating system receives security updates.
Conclusion
Finding your Linux distribution and release information is simple once you know the right commands. You can use /etc/os-release, lsb_release, hostnamectl, or graphical desktop settings to identify your system.
If you only need one method, start with cat /etc/os-release. If you also need the kernel version, run uname -r.
Knowing how to check OS version in Linux makes software installation, troubleshooting, and system maintenance easier. Keep your distribution updated and use its official documentation whenever you need version-specific instructions.