What parameter do I add to RSYNC to update modified or new files to the destination?

tankman1989 · 02-20-2010, 05:17 PM

Greetings,

I have been trying to figure out how to run RSYNC so that it will update the files on the destination/backup drive. I do not want to copy all 400GB, which has already been backed up, but only the 1-2GB that has changed since the last backup.
This is the code I have been using and it seems to copy over everything.

Code:

$ rsync -arvz --human-readable --progress --stats ./* user@linuxbox:/mnt/backup/

Also, if you know how to run this through SSH, That would be excellent to know as well!
Thanks for any help you can provide!

jschiwal · 02-20-2010, 05:45 PM

Moved: This thread is more suitable in Linux Software and has been moved accordingly to help your question get the exposure it deserves.

bryanl · 02-20-2010, 06:20 PM

You might want to see if the "--modify-window=NUM" option will help. That will reduce the accuracy of the modified times comparison. I needed this at times when copying to Samba shares.

Also, I suggest you run rsync as root to help keep permissions straight. This can be a problem sometimes if the user and group numbers on different machines aren't syncronized.