OTA update works well but can it be used to transfer the SPIFFS content

Using Arduino Avrdude, stk500, Bootloader issues
1

Hi My well working OTS Framework has this code in Setup

  // Over the Air Framework
  ArduinoOTA.onStart([]() {
    String type;
    if (ArduinoOTA.getCommand() == U_FLASH) {
      type = "sketch";
    } else { // U_FS
      type = "filesystem";
    }
    // NOTE: if updating FS this would be the place to unmount FS using FS.end()
    Serial.println("Start updating " + type);
  });
  ArduinoOTA.onEnd([]() {
    Serial.println("\n\rEnd");
  });

What does the else mean?
Can I use OTA to transfer the SPIFFS files?
If yes where is the procedure described?
Thank you for your clues.

2

select network port and do the SPIFFS upload

3

Juraj:
select network port and do the SPIFFS upload

Apparently you need a plugin for that. Very limited.
Only upload seem possible?
I would mainly need to download logs from the ESP 8266

I am affraid I will have to program an UDP transmission?

4

RIN67630:
Apparently you need a plugin for that. Very limited.
Only upload seem possible?
I would mainly need to download logs from the ESP 8266

I am affraid I will have to program an UDP transmission?

UDP?
web server download is a way. see the FSBrowser example

5

Juraj:
UDP?
web server download is a way.

Since i need the file on a Raspberry Pi in the same LAN -preferably with an unattended transmission- I prefer to forward the data over UDP, for which I already have a library loaded.

UDP transmission (within the LAN network) would be the better approach for me to transfer the file.
The whole http:// overhead does not seem to be desirable.