#Backup Script
A simple backup script utilising OpenSSL, tar and rsync, written in bash.
##Script Features
- Incremental backup retention
- Backups are encrypted with AES256-cbc with SHA1 message-digest
- The backup script can store a copy both locally and on a remote device/server
- Backups are sent over SSH
- Currently supports GNU/Linux and FreeBSD
##Backup Retention
By default:
- Daily backups are retained for the past week
- Weekly backups from Mondays are retained for the past month
- Monthly backups from the first Monday of each month are retained for the past six months
The retention lengths are adjustable in backup.cfg:
If desired, the backup deletion can be run seperately:
- To delete local backups, run "deleteoldbackups.sh"
- To delete remote backups, run "deleteoldbackups.sh --remote"
##Arguments backup.sh:
- --config [filename] : Specify a different configuration file (or location)
deleteoldbackups.sh:
- --config [filename] : Specify a different configuration file (or location)
- --remote : Delete remote backups (local backups are deleted by default)
Note that deleteoldbackups.sh is run both locally and remotely by backup.sh by default.
##Use With cron
If you're running this script from cron, make sure you add the following line to the top of your crontab:
PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin