Does anyone have a bash script that will only backup new or modified files inside a specific directory?
Basically, what I'm looking for is an incremental backup. I've been running a full backup for a couple days now and it's just not practical.
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it does exactly what you need
to be more specific - you must have
rsync --daemon on the machine with the files and the following command on the machine the backup is stored
/usr/bin/rsync -avz 18.104.22.168::ETC/ /some/dir/to/store/the/backup
where 22.214.171.124 is the ip of the machine and ETC is defined in /etc/rsyncd.conf as seen below
[ETC] comment = etc path = /etc use chroot = yes list = no uid = 0 gid = 0 read only = yes hosts allow = 126.96.36.199, 10.11.12.13 hosts deny = 0.0.0.0/0 transfer logging = yes
also, port 873/tcp must be allowed in the firewall
I'd suggest rsnapshot.
rdiff-backup is honestly your best bet for this. I've been using it for about 2 years on a fairly large and active box. Using it is pretty straight forward:
rdiff-backup /my_active_dir /my_backup_dir/
If you're interested in backups over a network, check out Duplcity (Google for it, I can't post two links apparently) which works under the same concept but sends encrypted volumes to wherever you wish. Even supports Amazon S3.
rsync cannot create incremental backups. Try rdiff-backup.