[lekanka]

Проблема решена

(echo user username pass
echo ls -d
echo quit)|ftp -n xx.xx.x.xx > C:\folder\file.txt

for /f %%i in (C:\folder\file.txt) do (
set filename=%%i
)
pause
(
echo user username pass
echo bin
echo hash
echo prompt
echo get %filename%
) | ftp -n xx.xx.x.xxx