rsync syncing more than it should

Question

I have the following rsync set up, which is supposed to sync CDR files created during the past day.

rsync -av root@vpsrv:'$(find /home/cdrs/*.cdr -type f -ctime -1)' /home/cdrs

However, if no files are found, then this command will sync the entire /root directory for some reason. I've even tried to prevent this by adding include= filter:

rsync -av --include="*.cdr" root@vpsrv:'$(find /home/cdrs/*.cdr -type f -ctime -1)' /home/cdrs

Or even grepping for *.cdr:

rsync -av --include="*.cdr" root@vpsrv:'$(find /home/cdrs/*.cdr -type f -ctime -1 | grep *.cdr)' /home/cdrs

but no luck. Do you have any ideas?

Answer 1

cd /home/cdrs && find /home/cdrs/*.cdr -type f -ctime -1 | rsync -av --files-from=- (source) (target)

The important bit is the '--files-from=-', which expects the list of files to be transferred from STDIN. It expects the filenames relative to the source-folder - that explains the 'cd /home/cdrs'...