Treat all arguments a command to be run.

kyle.rb

#!/usr/bin/env ruby

MAX_RETRIES = 4
SLEEP=2
COMMAND=ARGV.join(' ')

count = 0
loop do
  puts "Running: #{COMMAND.inspect}"
  unless system(COMMAND)
    abort "The command failed"
  end

  count += 1

  if count == MAX_RETRIES
    abort "The command passed #{count} times."
  end
  sleep 2
end