private void unknowCommand(String command) {
		System.out.println("Current command is " + currentCommand);
		if (currentCommand.equalsIgnoreCase("follow")) {
			if (command.equals("reset")) {
				currentCommand = "";
				sendToUser("Server Working ... ");
			} else {
				this.follow(command);
			}
		} else if (currentCommand.equalsIgnoreCase("checkportfolio")) {
			this.checkportfolio();
		} else if (currentCommand.equalsIgnoreCase("buy")) {
			if (command.equals("reset")) {
				currentCommand = "";
				sendToUser("Server Working ... ");
			} else {
				this.buy(command);
			}
		} else if (currentCommand.equalsIgnoreCase("SELL")) {
			if (command.equals("reset")) {
				currentCommand = "";
				sendToUser("Server Working ... ");
			} else {
				this.sell(command);
			}
		} else {
			currentCommand = "";
			sendToUser("Invalid command");
		}

	}