Scanner sc = new Scanner(System.in);
                while (true) {
                    try {
                        String str = sc.nextLine();
                        String[] args = str.split(" ");
                        if (args[0].equalsIgnoreCase("")) {
                            System.out.println("Verfügbare Befehle: servers, send <Nachricht>");
                        } else if (args[0].equalsIgnoreCase("servers")) {
                            System.out.println("Server online: " + sockets.size());
                        } else if (args[0].equalsIgnoreCase("send")) {
                            String msg = "";
                            for (int i = 1; i < args.length; i++) {
                                msg += args[i] + " ";
                            }
                            msg = msg.replaceFirst(" ", "");

                            for (Socket s : sockets.keySet()) {
                                PrintWriter out = new PrintWriter(s.getOutputStream());

                                out.write(msg);
                                out.println();
                                out.flush();
                            }
                        }

                    } catch (IOException ex) {
                        Logger.getLogger(PressureWarpServer.class.getName()).log(Level.SEVERE, null, ex);
                    }
                }