Using APT Packaging System Check Debian version cat /etc/debian_version Reference List https://www.ionos.com/digitalguide/server/know-how/how-to-check-debian-version/#:~:text=By%20typing%20%E2%80%9Clsb_release%20%2Da%E2%80%9D%2C%20you%20can%20get%20information,information%2C%20including%20your%20Debian%20version.