Simple Ruby Client/Server Communication

client.rb

require 'socket'

server = TCPSocket.open("127.0.0.1", 9090)
puts "You have the following options on this devilish server: \r"
puts "Type '%time' to see the time \r"
puts "Type '%hastalavista' to see the exit \r"
puts "Type '%pie' for some pie \r"
puts "Type '%why' to get some answer \r"
puts "Type '%Showtime' to get the image \r"
puts "Type '%nyan' to listen some music \r"

while true
	request = gets.chomp
	case request
	when "%Showtime"
		 server.write(request)
		 f = File.new("Showtime.jpg", "wb")
		 command = server.recv(20260)
		 f.write(command)
		 f.close
		 puts "Take a look  into the client directory\r"
	when "%hastalavista"
		 server.write(request)
		 command = server.recv(1024)
		 puts "#{command}\r"
  when "%close"
    	 puts "The Connection is lost\r"
    	 server.close
    else
    	server.write(request)
    	command = server.recv(1024)
    	puts "#{command}"
	end
end