uname

List Kernel Full details

boby@hon-pc-01:~ $ uname -a
Linux hon-pc-01 4.4.0-53-generic #74-Ubuntu SMP Fri Dec 2 15:59:10 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
boby@hon-pc-01:~ $ 

List Architecture

boby@hon-pc-01:~ $ uname -m
x86_64
boby@hon-pc-01:~ $ 

Show Kernel Version

boby@hon-pc-01:~ $ uname -r
4.4.0-53-generic
boby@hon-pc-01:~ $ 

See Linux Commands