Re: taking advantage of filles in folder other than destination
On Mon 05 May 2008, rssrik wrote:
> 1. I have taken yesterdays dump in a folder named 04-05-08 in database
> 2. I have rsynced the folder 04-05-08 to the backup server.
> 3. I have taken today's dump in folder named 05-05-08 in database server.
> 4. Now while doing rsync, I want rsync to compare the <database server's
> 05-05-08/dump file> with the <04-05-08/dump file> which already exists in
> backup server. (then eventually, I want rsync to send only the differences
> and store the output in folder 05-05-08).
> Typicaly I want to take advantage of yesterday's file which already present
> in a different folder.
> Can anyone suggest a working method to implement this ? (I tried --copy-dest
> / --compare-dest .. but couldnt get it to work)[/color]
Something like this should work...
BASE=/backup/psql # edit for your situation
REMOTESOURCE=dbhost::psqldumps/ # again, edit
TODAY=`date +%d-%m-%y` # I prefer %Y-%m-%d, sorts better
YESTERDAYS_BACKUP=`ls -td ??-??-?? | head -n 1`
rsync -a --compare-dest=../$YESTERDAYS_BACKUP $REMOTESOURCE $TODAY/
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