OOzy Pal wrote:
>
> it seems that all files are copied again and no checking whether
> the files are the same or have been changed.
lftp has some options for controlling that sort of thing. I'm not
an expert, because I use lftp for very simple transfers, but the
docs and the mailing list archives should help you:
man lftp
http://lftp.yar.ru/
http://lftp.yar.ru/list.html
http://www.mail-archive.com/lftp%40uniyar.ac.ru/
--
Andrew Witt
Sr. Software Systems Engineer
Revol - www.revol.us - Freedom is calling