lsb_release -a
cat /etc/os-release
cat /etc/*release
cat /etc/issue*
cat /proc/version
** From Wikipedia **
Initial release date: 17 September 1991
Linux is a family of open-source Unix-like operating systems based
on the Linux kernel, an operating system kernel first released on
September 17, 1991, by Linus Torvalds. Linux is typically packaged in
a Linux distribution.
Linux is a free and open source operating system kernal which is the basis of
all the linux distributions. It is one of the most powerful kernel which is used
almost everywhere....