This backup script utilizes tar and systemd to create differential backups daily or weekly. The script will continue to make differential backups until the latest backup is 70% of or larger than the first initial backup. When this threshold is reached a new full backup is made. The script will also remove old backups if the --set-limit is lower than (target directory + stored backups). It will also automatically update --set-limit so that it's always two times larger than the target directory as long as there is enough free space.
Install with sudo ./install.sh and then run sudo bakup --setup to configure.
- Added check for file changes before making backup only if needed.
- Added function to find existing backups during setup.
- Added ability to set custom threshold value.
- Added option to use all free space by setting limit to 0.
- Added option to set maximum number of differentials before new full backup.
Options:
--setup run initial setup to configure bakup
existing backups will be found if using the
same directories
--run perform backup now manually
--list list all available backups
--log show log messages from journalctl
--migrate <PATH> move entire backup directory to new location
--restore <DATE> <PATH> restore from backup where PATH is directory path
for extracted archive
--help display this help text
--version print version information
Settings:
--set-target <PATH> set or change TARGET directory
--set-dest <PATH> set or change DESTINATION directory
--set-auto <OPTION> run backup automatically at interval
valid options: daily, weekly, off
--set-thresh <INT> differential size in % of full backup before
a new full backup is be made
valid values between 10-99 (default 70)
--set-limit <INT> set or change size limit for backup location (GB)
if set to 0, use all free space
--set-max <INT> set maximum number of differential backups
(optional) (default 0)