Check Ubuntu Version: How to Find Your Ubuntu Release

Determining Your Ubuntu Version
Ascertaining the specific version of Ubuntu currently installed on your system is a straightforward process. This method is particularly useful for verifying a successful upgrade, such as confirming a transition from Dapper to Edgy.
Using the /etc/issue File
The most common approach involves utilizing a simple command to access the version information stored within the /etc/issue file.
cat /etc/issue Ubuntu edgy (development branch)
This command displays the Ubuntu version currently in use. It's important to recognize that the displayed version numbers are subject to change as Ubuntu evolves.
As an example, the output reflects the beta version currently running on this system. However, regardless of the specific version, the command clearly indicates the Ubuntu release being utilized.
Ubuntu version identification is crucial for troubleshooting and ensuring compatibility with software and updates.
The /etc/issue file provides a quick and reliable method for determining your Ubuntu release.