[Linux] kernel update and remove

Take amd64 as example:

$ cd tmp/
$ wget kernel.ubuntu.com/~kernel-ppa/mainline/v4.4.6-wily/linux-headers-4.4.6-040406_4.4.6-040406.201603161231_all.deb
$ wget kernel.ubuntu.com/~kernel-ppa/mainline/v4.4.6-wily/linux-headers-4.4.6-040406-generic_4.4.6-040406.201603161231_amd64.deb
$ wget kernel.ubuntu.com/~kernel-ppa/mainline/v4.4.6-wily/linux-image-4.4.6-040406-generic_4.4.6-040406.201603161231_amd64.deb

$ sudo dpkg -i *.deb
// Uninstall
$ sudo apt-get remove 'linux-headers-4.4.6*' 'linux-image-4.4.6*'
// Remove old kernels
$ sudo apt-get autoremove --purge
$ sudo purge-old-kernels