For a long time I was using windows. I have a separate drive I use to keep copies of my media files, photos etc. on, which I periodically backup to an external drive. In Windows I used SyncToy to do this. After my Windows stopped booting, I decided to switch to Linux (Ubuntu 10.10). That seems to be going fine, but now I want to backup my drive to the external drive like before.
Mostly the two drives will be already the same with maybe about 10GB of extra files added.
So I try to use rsync to synchronise the two drives like this:
rsync --dry-run -rvlt --modify-window=1 /media/Antonio1TB/Backup /media/FREECOM\ HDD/Backup
The problem is the dry run indicates that every file on the drive will be copied. Not just the files I have recently added.
What is the correct command to synch two NTFS drives under Ubuntu so that files that already exist don't get copied again? Thanks.