The '-b' parameter not do an incremental backup but only a 'backup' . 
Reread the manual:
http://rsync.samba.org/ftp/rsync/rsync.html

First, if you want an incremental backup you MUST define some parameters 
and think about this.
- time schedule
- number of copies
- expected/maximum size
- etc
If you have more computers this is a big problem... think well!


Dr Skip wrote:
> Deltacopy is now working, and certainly helpful considering the mind-numbing 
> array of options in rsync (it should be called kitchen-sink ;)
>
> I particularly like the showing of the command line at run time and in the log. 
> However, I need some help. In testing, I backed up a small dir, then added a 
> file, then updated the file, all with rsync in between. All is fine for a 
> mirrored setup. I then added the '-b' parameter to do incremental backups, 
> hoping it would do them indefinitely. The first time, file.txt became file.txt~ 
> (the original wasn't touched) which was expected, but thereafter, the original 
> would get overwritten, rather than a new file getting written again with some 
> other name modifier. Is there a way to get it to make file.txt~1 file.txt~2 
> etc, or even the expected file.txt~~ or such?
>
> TIA,
> Skip
>
>
> Nicola Perotto wrote:
>   
>> Also with Deltacopy there is an RSync server very good.
>>
>>
>>     

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