Fact: operatingsystemrelease
Purpose: Returns the release of the operating system.
Resolution:
On RedHat derivatives, returns their '/etc/<variant>-release' file. On Debian, returns '/etc/debian_version'. On Ubuntu, parses '/etc/issue' for the release version. On Suse, derivatives, parses '/etc/SuSE-release' for a selection of version information. On Slackware, parses '/etc/slackware-version'. On Amazon Linux, returns the 'lsbdistrelease' value. On Mageia, parses '/etc/mageia-release' for the release version. On all remaining systems, returns the 'kernelrelease' value.
Caveats: