litte script which monitors my internetconnection

monitor.rb

#!/usr/bin/ruby -w
# this is an example of uncommunicative code
# would be a good example for refactoring to make clear what it does
class Monitor
  
  @@host = "heise.de"
  @@tries = 4
  @@results_per_line = 60
  @@log = __FILE__.gsub(/rb$/,"log")
  
  def run
    last_ping = Time.now - 140
    column = @@results_per_line
    while true
      if column >= @@results_per_line or (Time.now - last_ping > 130)
        File.open( @@log, 'a') {|f|
          f.write("\n") if Time.now - last_ping > 130
          f.write("\n#{Time.now.strftime("%m-%d %H:%M")}") 
        }
        column = 0
      end  
      File.open( @@log, 'a') {|f| 
        f.write( ping )
      }
      last_ping = Time.now
      column += 1
      sleep 60
    end
  end

  def ping
    try = 1
    online = false
    while try <= @@tries and online == false 
      online = system("ping -c 1 #{@@host}")
      try += 1
    end
    online ? "." : "E"
  end  

end

Monitor.new.run