Check to see what you can do : Process « Threads « Ruby

1. Ruby
2. Threads
3. Process

Check to see what you can do

def what_can_i_do?
  sys = Process::Sys
  puts "UID=#{sys.getuid}, GID=#{sys.getgid}"
  puts "Effective UID=#{sys.geteuid}, Effective GID=#{sys.getegid}"

  file = '/bin/ls'
  can_do = [:readable?, :writable?, :executable?].inject([]) do |arr, method|
    arr << method if File.send(method, file); arr
  end
  puts "To you, #{file} is: #{can_do.join(', ')}"
end

what_can_i_do?


Process.uid = 1000
what_can_i_do?

 

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