Command line Interface mode and Backup with Mac OS X:
This document explain how to setup a backup on a Mac OS X server without additional software than those provided by Apple.
This chapter is intended to system administrator familiar with Terminal mode. You must undertstand basic shell commands to get advantage of this document.
worth exploring: I found this while researching what a “cpgz” file was. Turns out it’s an archived created by ditto, compressed.
I find Backup, the application, to be a bit balky: perhaps this will give me better results.