获取VirtualBox的IP地址：

VBoxManage list runningvms \"ubuntu nodejs installed\" {e42c8b5a-3a0c-48fc-84cb-92f440df8d12}

VBoxManage showvminfo \"\" | grep mac -i

NIC 1: MAC: 080027F7D29E, Attachment: Bridged Interface 'en0: Wi-Fi (AirPort)', Cable connected: on, Type: 82540EM, Reported speed: 0 Mbps, Boot priority: 0, Promisc Policy: deny