How to set up networking on an uncooperative CLI

So, if you have something like a ThinkPad X380 Yoga (or like, any of the newer, thiner ThinkPads) that has something like a proprietary Ethernet port or no network port at all then here's how you set up networking and get your hardware pinging the internet on a bare Ubuntu (or not) install.

First, you need to add the device to

/etc/network

Add the device to your `interfaces` file which might look something like this:

        # This file describes the network interfaces available on your system
        # and how to activate them. For more information, see interfaces(5).
        source /etc/network/interfaces.d/*
        # The loopback network interface
        auto lo
        iface lo inet loopback

You will need to find the device name using

ifconfig -a

and then add the device to this like this:

iface &ltDEVICE NAME> inet dhcp

Then, you will need to hit it with an

ifdown &ltDEVICE NAME>

and then an

ifup &ltDEVICE NAME>

and then, assuming the divine forces will actually allow it, you should be able to network!