#!/usr/bin/env ruby
dir = ARGV[0] || "/usr/local/bin/"
Dir["*.sh"].each do |n|
  src = File.join(Dir.pwd, n)
  target = File.join(dir, File.basename(n, '.sh'))
  command = "sh -c 'rm -f #{target} && ln -s #{src} #{target}'"
  command = "sudo #{command}" unless File.writable?(dir)
  puts command
  system(command)
end