spam.rb

spam.rb

# spam.rb - Creates spam logfiles from an example. Rates are approximate.

if ARGV[2] !~ /^\d+$/ || !File.exists?(ARGV[0])
  puts "USAGE: ruby #{__FILE__} [source] [dest.] [rate in mb/s]"
  puts "i.e.:  ruby #{__FILE__} example.log spam.log 3"
  exit
end

trap("INT") { exit }

source = ARGV[0]
destination = ARGV[1]
size = File.size(source)
rate = ARGV[2].to_i*1024*1024 # n kb/s
delay = size.to_f/rate

loop do
  start_time = Time.now.usec
  `cat #{source} >> #{destination}` 
  end_time = Time.now.usec

  deduct = (end_time - start_time)/1000000.0
  sleep(delay - deduct) if deduct < delay && deduct > 0.0
end