A Ruby script to check for the latest stable linux kernel

latestkernelchecker.rb

require 'rubygems'
require 'nokogiri'
require 'open-uri'

url = 'https://kernel.org'

data = Nokogiri::HTML(open(url))

version_no = data.at_css("#latest_link").text.strip
local_version = `uname -r`
machine_name = `cat /etc/hostname`.chomp.capitalize	
repo_version = `pacman -Ss linux-headers`[19...31]


puts "The latest linux kernel release is version #{version_no}"
puts "And your the kernel installed on #{machine_name} is #{local_version}"
puts "The latest kernel in the repo is #{repo_version}"