I'm trying to get rsync just to sync files that have changed and or been created since it's last run. This is an attempt to stop my NAS servers disks from spinning up every time rsync runs even when there is no file to copy across.
I'm assuming the easiest way to set the time of the last run is to touch a markerfile. That I can do. Where I am stuck is getting rsync to only sync files newer than the markerfile. I don't think rsync has a -newer option. I'm assuming I might need to run some other commands that will create an include list but I am a real *nix noob.
If it matters, the scripts will be running on the unRAID version of slackware.