I have tried many many different combinations of rsync commands, but whatever platform I use it on, from whatever source to whatever destination. It always transfers everything no matter if it's exactlyt the same or not. What is the secret? The last command I've used is this rsync -avz --progress source:somepath/specficfolder/* destination:otherpath/spceficfolder/
How do I get it to only transfer files that are modified?
UPDATE: Thank's to blackhats answer in pointing me the right direction I found a much better option for me to use was the --filesize option that only checks filesize to see if it needs to transfer the file or not. Checksome worked, but was extremely slow as most of my files are large mp3 files. I suppose it would a good option if your files are text files, source code, and other character data of that nature while large media files that wouldn't have changed are better transferred with the filesize option.