example of my easy-one-command backup script:

traut@traut-laptop:~$ cat ./make-backup.sh
rdiff-backup --force -v4 --print-statistics /home/traut /media/storage/_backup
traut@traut-laptop:~$ ./make-backup.sh
Using rdiff-backup version 1.1.14
...
[skip]
...
--------------[ Session statistics ]--------------
StartTime 1204299600.00 (Fri Feb 29 17:40:00 2008)
EndTime 1204300856.80 (Fri Feb 29 18:00:56 2008)
ElapsedTime 1256.80 (20 minutes 56.80 seconds)
SourceFiles 179336
SourceFileSize 45282340567 (42.2 GB)
MirrorFiles 179080
MirrorFileSize 45899848891 (42.7 GB)
NewFiles 3248
NewFileSize 977380475 (932 MB)
DeletedFiles 2992
DeletedFileSize 1596537521 (1.49 GB)
ChangedFiles 324
ChangedSourceSize 572043066 (546 MB)
ChangedMirrorSize 570394344 (544 MB)
IncrementFiles 6564
IncrementFileSize 1528496310 (1.42 GB)
TotalDestinationSizeChange 910987986 (869 MB)
Errors 0
--------------------------------------------------
traut@traut-laptop:~$

it’s extremely simple and maybe I should add some versions support. You can easily fire this backup task every-night/every-week/every-month with cron.