How to Check Kernel version and other related information in Linux

uname command with the -a option gives an output of some system information, including machine name, kernel name and version, and a few other details.

For example :

04:58 pm nec ~
┗$ uname -a
Linux amz 3.10.27-1-MANJARO #1 SMP Thu Jan 16 20:54:40 UTC 2014 i686 GNU/Linux