regular-backups-with-rdup.md

Using rdedup with rdup for regular backups

This is a simple example of a script used to backup regularly with rdup as the utility stream the file / folder structure as well as the data into a name in your rdedup repo.

Script:

#!/bin/bash

stamp=$(date +"%y-%m-%d")
base="home"

rdup -v /dev/null /path/to/backup | rdedup store $base-$stamp

This script creates a new name using the timestamp at the end to differentiate it from previous backups. rdedup will ignore duplicate data being sent to it so each run of this script will create a full backup of the data but only store a single reference to duplicate data in the repo meaning that only different data is actually stored on disk.

rdedup will output statistics of the run into the console so you can see the number of new chunks and new bytes that have been written to your repo.

Restoring the data

To restore the data the command is simple. You can create it as a script if you want to abstract the slightly complex command.

To restore a name from rdedup what has used rdup run the following:

rdedup load name | rdup-up "/path/to/restore/to"

Replace name with the name in the repo that has the point in time you want the data from