Install lsb-release by entering the following commands in the terminal:
sudo apt update sudo apt install lsb-release
Description:
Linux Standard Base version reporting utility
The Linux Standard Base (http://www.linuxbase.org/) is a standard core system that third-party applications written for Linux can depend upon. . The lsb-release command is a simple tool to help identify the Linux distribution being used and its compliance with the Linux Standard Base. LSB conformance will not be reported unless the required metapackages are installed. . While it is intended for use by LSB packages, this command may also be useful for programmatically distinguishing between a pure Debian installation and derived distributions.
Homepage: https://wiki.linuxfoundation.org/lsb/start
Version: 9.20170808ubuntu1
Section: misc