I need to write a program for my Uno or Mega that will transfer text files stored on an SD card to a shared folder on a network drive using the Ethernet shield. I think FTP is the way to go but not sure how to approach it nor have I found any examples on the web with this sort of file transfer to give some insight. Unfortunately the serial port is not an option nor is accessing the files through a web page but I have accomplished these tasks hoping they would shed some light on file transfer to a network drive (they didn't...).
Can anyone please confirm that file transfer to a shared folder on a network drive is possible with an arduino? For example, write the file helloWorld.txt stored on the SD card to a network folder called arduinoFiles on the (R:).
Please offer advice, reading materials on the subject and examples of code that will nudge me in the right direction for understanding how it's accomplished?
Thanks for your help!