Here's an idea. Use inotify/incrond to build a list of which files or directories have changed since a certain time. Then when you run rsync, you can either feed the list directly, or use it to generate a subset of directories to look at.
Note: I only just found out about inotify from a web search. This looks like a good overview: http://www.cyberciti.biz/faq/linux-inotify-examples-to-replicate-directories/ You have to create a separate monitoring command for each directory. The overview shows one way to do this, and based on that, I think you could use incrond itself to generate a new entry whenever a directory is created within a watched directory. I have no idea how costly this might be in terms of system performance, when you've got incrond handling thousands of scripts. You'll also want to delete entries when directories are deleted. Another problem might be if you expect hardlinks to be preserved using -H. Here I think you'd need to user --filter or --include/--exclude so that your entire backup list could be based off a single root directory. Elliot Wilen Network Administrator/Postmaster Communications and Computer Systems MPR Associates, Inc. 2150 Shattuck Ave., Suite 800 Berkeley, CA 94704 Phone: (510) 849-4942 Fax: (510) 849-0794 www.mprinc.com -- Please use reply-all for most replies to avoid omitting the mailing list. To unsubscribe or change options: https://lists.samba.org/mailman/listinfo/rsync Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html