This is a sample for an endless matrix output in green for your console in Ruby

green_console_matrix.rb

class String
  # Print a String in a specfic color
  def colorize(text, color_code)
    "#{color_code}#{text}\e[0m"
  end
  # Green String
  def green
    colorize(self, "\e[1m\e[32m")
  end
end

require "matrix"

while true
  matrix_array = []
  for i in 1..5
    m = Matrix.build(1) { rand }
    matrix_array << m.first
  end
  puts "#{matrix_array.join("\t")}".green
end