Download of Backup Shell Script 8.3 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The software lies within System Tools, more precisely Backup & Restore. This free Mac application is a product of Bernhard Baehr.
From the developer:
The backup shell script copies a Mac OS X HFS+ boot volume to a target directory, including resource forks and Unix access rights. After downloading the file, open a Terminal window and go to the folder where you have stored the script (e. g. by typing "cd ", then dragging the download folder from the Finder to the Terminal window, then typing the return key).
You may want to check out more software for Mac, such as Script Timer, Mail Backup X or EventScripts, which might be similar to Backup Shell Script.
System Optimization
Backup & Restore