Quick rsync question

[Andy Green]

James Pifer wrote:
> I just finished rsyncing a bunch of data to another drive. I'm doing
> this for backup purposes so I'll run it every night. After it finished I
> realized it went one directory level too deep. So I moved the data to
> the correct level and adjusted the rsync command. But now it want to
> recopy everything. Here's the rsync command I used:
> rsync -turv0 --progress --delete /media/160GBUSBDSK/data /mnt/USBbkup-
> storage
> 
> What option should I use to get rsync to get it to update without
> wanting to re-copy everything? I'm looking at rsync --help, but not sure

AFAIK the only information that rsync uses to determine if a copy exists
is in the file that you have on the destination side, eg, timestamp, the
 filename, etc.  It's not like it has a separate database or something.
 Have the timestamps changed, eg, the destination timestamps are the
times the copy was written?  I usually use the switches avz.

-Andy
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