How do you find out which version of Linux you are running?

Using the lsb_release -a command is a reliable method to find out the specific version of the Linux distribution you are running. This command provides a standardized output that includes various details such as the distributor ID, the description of the release, the release number, and the codename. It's particularly useful because it works across many different Linux distributions, making it a versatile choice for obtaining version information.

The significance of this command lies in its ability to comprehensively present all relevant distribution information in one go, which is beneficial for users who may need to know details about their system for software compatibility or troubleshooting.

While other methods, such as checking the /proc/version file or using the uname -r command, might provide some version information, they may not include the full range of details offered by lsb_release. For instance, /proc/version shows the kernel version but does not give insights specific to the distribution name or release details. Similarly, uname -r focuses primarily on the kernel version rather than overall distribution information. Hence, lsb_release -a stands out as the most informative and user-friendly option for discovering the Linux version.