what is the advantage of using rsync over sftp

[Peter Matulis]

On 09/29/2010 06:06 AM, Ahmed Kamal wrote:
>   I understand you want to do all the same steps, just replace rsync 
> with scp ? Well the advantage, is that you will be doing the backups 
> regularly, and here rsync shines, because it will only send to the 
> remote end the files that have been changed from the last backup! scp 
> would just send everything

It's even better than that.  Only parts (chunks) of files are
transferred.  Chunk size is dynamically determined on a per-file basis
during transfer but can be specified with

-B, --block-size=BLOCKSIZE

-- 
Peter Matulis