I'm not asking, I'm just taking notes for the records 
: as I have no wifi on my old desktop PC, I did the test, and sketch&web upload works fine on Win7 with IDE 1.6.3, as long as you power Yun with USB cable connected to external power rather than PC: thus Yun IP address appears in Tools menu as needed.
It's pretty safe to say that whenever something about the Yun says "WiFi" you can substitute "Network" -- in other words, all communications and operations should work just as well over Ethernet as WiFi. So yes, if you have only an Ethernet connection, you should still be able to do anything.
You can also manually load web pages without a network at all by inserting an SD card in your computer, putting the files in place, and then putting the SD card in the Yun. But then again, there isn't much point in putting web pages on a Yun if you have no network to serve them over...
Yes, but official documentation says "if you don't connect by wifi you can't upload webpages to SD card"; this is not true.
BTW, Yun official documentation really sucks. >:(
An additional method to upload files to SD while keeping it into the Yun but with IDE not seeing the board is using an SCP-supporting FTP client (somebody suggests WinSCP): in this case you'll use USB to upload sketches and WinSCP to upload files to SD card.
BTW, 10 years passed and Arduino IDE also still sucks: random/mistery/buggy management of Tools/Ports menu (a menu updated when you click it?!? what about a refresh button), "funny" text editor without drag&drop support, one-pixel-wide draggable separator between edit panel and messages panel, missing "SAVE" button on toolbar....
This is s really sad. 
A good hardware with poor documentation and poor software. Isn't there any Quality Check Responsible in Arduino team?!?
jumpjack:
Yes, but official documentation says "if you don't connect by wifi you can't upload webpages to SD card"; this is not true.
Can you post a link of where it says that? Understanding that the documentation usually says "WiFi" when it should say "network," you might be taking the statement out of context. It's probably saying that without a WiFi network connection, you can't automatically upload pages while uploading a sketch. That doesn't mean that there aren't other ways to do it that aren't part of the network sketch upload process.
In general, there seems to be several ways to accomplish most any task with the Yun.
But yes, I in general, do agree with your documentation/IDE comments.
jumpjack:
::::SNIP::::
This is s really sad.
apparently you're new to the Open Source World. When companies, like Arduino, release their code (and most of their hardware) open source, there is a "Social Contract". It is an unwritten "social contract".
Under this social contract, we are obligated to help each other. This means many times there are mistakes and documentation is lacking.
You are free to complain, or fix the problem. Take your choice.
Jesse
, 10 years passed and Arduino IDE also still sucks
If you insist on using an IDE, try uecide.
jessemonroy650:
@jumpjack,apparently you're new to the Open Source World. When companies, like Arduino, release their code (and most of their hardware) open source, there is a "Social Contract". It is an unwritten "social contract".
Under this social contract, we are obligated to help each other. This means many times there are mistakes and documentation is lacking.
You are free to complain, or fix the problem. Take your choice.
Jesse
Point is: is it REALLY possible that nobody complained, in 10 years, about missing "save" button in toolbar, "one-pixel separator" between panels, weird behaviour of tools menu and "primitive" text editor?
This IDE still looks like a 0.0.xxx alpha version...
Can you post a link of where it says that?
Who knows? I had to read so many pages, and Google only gives this one as "official" (i.e. from arduino.cc)