Python script which automatically updates kernel to newest available version in http://kernel.ubuntu.com/~kernel-ppa/mainline/. Scripts works for Ubuntu and Debian systems.

update_kernel.py

#!/usr/bin/python

import os,commands,requests, re

get_ver = 'uname -r'
get_arch = 'dpkg --print-architecture'
url = 'http://kernel.ubuntu.com/~kernel-ppa/mainline/'

#Check processor architecture
status,arch = commands.getstatusoutput(get_arch)

#Check currently installed kernel version
status,ver = commands.getstatusoutput(get_ver)

print ("System Architecture is %s\nKernel version is %s") % (arch, ver)

r = requests.get(url)

regex = re.compile(r'href="v([^ \/]+).*(\d\d\d\d-\d\d-\d\d\s+\d\d:\d\d)')
a = regex.findall(r.text)
version = a[-1][0]
#find url for newest kernel in url = 'http://kernel.ubuntu.com/~kernel-ppa/mainline/'
url_ver = url+'v'+version

#find necessary deb files for newest version in url_ver:
#linux-headers-VERSION-NUMBER_all.deb
#linux-headers-VERSION-NUMBER_amd64.deb
#linux-image-VERSION-NUMBER_amd64.deb

w = requests.get(url_ver)
regex = re.compile(r'>(linux-headers.*_all.deb)')
a = regex.findall(w.text)
h1 = a[0]
regex = re.compile(r">(linux-headers.*-generic_.*_"+arch+".deb)")
a = regex.findall(w.text)
h2 = a[0]
regex = re.compile(r">(linux-image.*-generic_.*_"+arch+".deb)")
a = regex.findall(w.text)
h3 = a[0]

regex = re.compile(r'linux-headers-(.*)')
a = regex.findall(h1)
ver_ins = a[0].split('_')[0]

print ("Found new kernel version %s") % ver_ins

#Check if installed version is different than newest version
if ver[:len(ver_ins)] == ver_ins or ver_ins[:len(ver)] == ver:
        print("Kernel is already in newest version")
else:
        download = raw_input("Proceed with download Y/n: ")
        #Download linux-headers-VERSION-NUMBER_all.deb, linux-headers-VERSION-NUMBER_amd64.deb, linux-image-VERSION-NUMBER_amd64.deb
        if download == "Y" or download == "y":
                command1 = 'wget '+url_ver+'/'+h1
                os.system(command1)
                command2 = 'wget '+url_ver+'/'+h2
                os.system(command2)
                command3 = 'wget '+url_ver+'/'+h3
                os.system(command3)

                print("Kernel packages downloaded successfully!!!\n")

                #Install kernel packages
                install = raw_input("Proceed with install Y/n: ")
                if install == "Y" or install == "y":
                        os.system("dpkg -i *.deb")
                        print("Installation successfull\n")
                        
                        #Reboot system
                        reboot = raw_input("Proceed with reboot Y/n: ")
                        if reboot == "Y" or reboot == "y":
                                os.system("reboot")
                        if reboot == "N" or reboot == "n":
                                print("Quitting!")

                if install == "N" or install == "n":
                        print("Quitting!")

        if download == "n" or download == "N":
                print("Quitting!")