compare questions

[Wayne Davison]

On Mon, Aug 18, 2003 at 11:47:43PM +0800, damian lee wrote:
> Is the modify date or it has it`s own database ???

There's no database -- it uses the modify time and the size (by default)
as a quick check to determine if a file is the same or not.  Keep in
mind that you must tell rsync to maintain the timestamp (using -t or -a)
in order for successive copies to be able to use this hint to speed up
the transfer.

..wayne..