Incremental backup Linux command

Question

What is the command to do a incremental backup? Any source or any links would be much appreciated.

Answer 1

rsync is what you are looking for. Here is a nice tutorial.

Answer 2

Dirvish makes incremental snapshots (that look as full directories trees, thanks to the magic of hardlinks), using rysnc under the hood. It works well for me.

Answer 3

Depending on what you need from your backups, rdiff-backup may be what you want. It's based on the same idea as rsync, but also keeps historical backups (in a space-efficient manner, by storing the differences).