The utility sfxcompress is a bash script used to pack and encrypt the current directory on a self-extracting file. It also includes the calculation of the MD5 function to check if the compressed file is correct.
A small ruby script that provides an easy and highly configurable interface for Rsync and Tar. It features incremental backup with compressed option and mail support.
Hedge is a simple, easy-to-use backup script.
It makes a compressed, encrypted tarball, either full or differential-by-date and sends it to one or more remote hosts via ssh. It sends you a report, and cleans up old backup images.