In order find out what version of Linux you are running you can execute either of the following commands:
- cat /etc/*-release
- lsb_release -a
- cat /proc/version
- dmesg | head -1
To find out the kernel version of Linux you can execute either of the following commands:
- uname -a
- uname -mrs
Disclaimer: These commands worked for me on Debian Linux.
Update for Oracle Linux
The following commands gave accurate information about OS and release numbers on Oracle Linux.
rpm -qf /etc/redhat-release oraclelinux-release-6Server-8.0.3.x86_64
cat /etc/issue.net | head -1 Oracle Linux Server release 6.8