print: "Nick: "
nick = gets
print "string :"
msg = gets
if msg.split.first == "NickServ"

    case msg.split[1]
        when "register"
            if msg.length == 4
                if eval("`cd Users/#{nick}`") == ""
                    Dir.mkdir("Users/#{nick}")
                    Dir.mkdir("Users/#{nick}/Stats")
                    password = File.new("Users/#{nick}.pswd", "w")
                    password.write "#{Digest::SHA2.hexdigest('{msg.split[2]}')}"
                    password.close
                    email = File.new("Users/#{nick}.email", "w")
                    email.write "#{msg.split.3}"
                else
                    Privmsg(nick, "#{nick} is already registered.")
                end
            end
    end