data

1380908555 hi 6
1380908555 hi 6
1380908612 filegrapher.rb 552
1380908612 filegrapher.rb 552
1380908647 hi 1440
1380908647 hi 1440

filegrapher.rb

#!/usr/bin/env ruby
# gems required - rb-inotify

require 'rb-inotify'

def handler(event) 
 File.open("data", "a") { |f| f.write "#{Time.now.to_i} #{event.absolute_name} #{File.size event.absolute_name}\n" }
end

notifier = INotify::Notifier.new

files = File.readlines('FILES').map { |a| a.strip! }
files.each do |file|
  p "watching #{file}"
  begin
  notifier.watch file, :modify, :create, :delete, :delete_self do |event|
    $stderr.puts event.absolute_name
    handler event
  end
  rescue
    p "error watching #{file}"
  end
end

notifier.run

FILES

filegrapher.rb
test
hi