Detect USB and copy *.* to USB drive using batch script

Question

I am trying to write a batch script to detect a USB drive and, if it is plugged in, for example copy c:\test\big.txt to the USB drive, and looping to detect another flash drive.

Answer 1

@echo off
for %%d in (D: E: F: G: H: I: etc...) do (
   if exist %%d\nul (
      echo USB at drive %%d connected
   )
)

EDIT: Below is the right way to do that:

@echo off
for /F "tokens=1*" %%a in ('fsutil fsinfo drives') do (
   for %%c in (%%b) do (
      for /F "tokens=3" %%d in ('fsutil fsinfo drivetype %%c') do (
         if %%d equ Removable (
            echo Drive %%c is Removable (USB^)
         )
      )
   )
)