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Backup comfortably with rdup

Several days ago, I wanted to make a backup of my home directory to an external HDD connected with USB, and decided to use the "rdup" utility.

"Rdup" is a set of commands to manage multiple generations of backups of a certain directory.  What caught my eyes was its feature to make hard links between the generations automatically to save disk space.

In order to accomplish a typical backup task, rdup's three commands should be combined appropriately.  But if your backup goes to a local storage straightforward daily, a shell script 'rdup-simple' gives a shortcut to the task like:

# rdup-simple /home/mine /media/BACKUPHDD/mypc/

Because rdup is provided as a package in Debian, its installation was also very simple.
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