Hello John, Thank you for your comment. On Jun 17, 2011, at 3:58 PM, John Delacour wrote: > At 07:59 +0900 17/06/2011, Nobumi Iyanaga wrote: > >> ...So, my options, "-aEHv" must contain "-t" as well. In fact, I >> have not tried to backup with the option "-m", and I should >> perhaps try it. > > Would ditto do what you want? man ditto. Well, ditto seems not to do the incremental backup, but a copy of all the file/folder structure. It seems to work well for that, but when there is already one backup, it takes too long time because it overwrite all the folder. Thank you anyway. Best regard, Nobumi Iyanaga Tokyo, Japan