
I'm looking for a way to automate rsync which seems quite powerful and free to use. Please, back your answer with some arguments, I would appreciate it. Is -av -progress -delete enough? Am I committing a crime or risking some data? What options would you use. What -exclude or -exclude-from can be used safely on a Mac? May be a good rule is “just copy anything that Finder shows” which is what I would copy if I passed manually through all folders. For example, if I have photo.png I would expect to copy photo.png, not. How can I copy only the files that matter, leaving all those that don't matter behind. Now the log is full of files which name starts with. I got to this point rsync -av -progress -delete /Volumes/A/ /Volumes/B
ARRSYNC RUN AS ROOT UPDATE
I want then to automize this by using rsync to avoid copying files that are already on the destination hard drive (of course, if a change has been made, I want to update the file/folder the same with deleted files/folders or new files/folders the idea is to mimic what I usually do manually with Finder).
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After a few searches, it seems I can use rsync. The external hard drive only contains “basic data” (folders, images, videos, documents, etc.), nothing fancy/weird.īut with all the amazing free tools that exist out there I couldn't find a decent one to backup (suggestions accepted).

I currently back up the contents of an external hard drive A by (1) deleting everything in the destination external hard drive B and (2) copying everything from A to B (in Finder).
