Show Information Kernel Linux

Jump to topic, there are syntax CLI Linux's system :

Usage: uname [OPTION]...
Print certain system information.  With no OPTION, same as -s.

  -a, --all                print all information, in the following order, except omit -p and -i if unknown:

  -s, --kernel-name        print the kernel name
  -n, --nodename           print the network node hostname
  -r, --kernel-release     print the kernel release
  -v, --kernel-version     print the kernel version
  -m, --machine            print the machine hardware name
  -p, --processor          print the proc

Kernel linux (new) :

• 3.9.2 : Ubuntu 13.04/Mint 15 :

    cd /tmp
    wget http://goo.gl/49Fas -O kernel-3.9.2
    chmod +x kernel-3.9.2
    sudo sh kernel-3.9.2
    sudo reboot

And, how to remove old kernel in linux system ?

This is a answer from question in above :

sudo apt-get purge linux-image-(version)*