gistfile1.txt

irb(main):001:0> `sudo top -bn2 | sed -n '/Cpu/p' | tail -n 1`.strip.split(/,\s/).map do |i|
irb(main):002:1*   i.match(/([0-9]*(\.|\,)[0-9]*)/).captures[0].to_f
irb(main):003:1> end
=> [0.2, 1.8, 11.5, 86.4, 0.0, 0.0, 0.1, 0.0]
irb(main):004:0> `sudo top -bn2 | sed -n '/Cpu/p' | tail -n 1`.strip.split(/,\s*/).map do |i|
irb(main):005:1*   i.match(/([0-9]*\.[0-9]*)/).captures[0].to_f
irb(main):006:1> end
=> [0.1, 1.8, 11.8, 85.6, 0.8, 0.0, 0.1, 0.0]
irb(main):007:0> `cat /etc/issue`
=> "Ubuntu 16.04 LTS \\n \\l\n\n"