Bash Script to backup a folder to a zip, keeping a specificed number of copies.
Backup source folder to destination folder:
backuprotater.sh "/sourcefolder" "/destination"
This has a default rotate count of 10 files. If it finds more than 10 files in /destination folder it will delete the oldest files until there are only 10 in total.
Note: The script keeps a latest.zip file for quick finding of the latest version. This is included in the rotation count. (i.e. you will have 9 unique backups,plus the latest as a duplicate)
Use the -p option to specify a differnt rotation count:
backuprotater.sh -p 15 "/sourcefolder" "/destination"
This will keep a max of 15 files in the destination.
Based of a script from 'Tony B'.