Rsync

Rsync is the directory backup and transfer tool for Linux. Installed as default in Ubuntu. It can provide any type of backup, and options are extensive.

GRsync

GRsync is a GTK-based GUI  for Rsync. Install this by following command:

sudo apt-get install grsync

Bacula

Bacula is the most widely-used GTK-based open source (GPL-licensed) network backup utility that is used in both server and desktop installations. A catalogue of backups can be maintained using MySQL, PostgreSQL, or SQLite. For more info see the Ubuntu documentation. Both text-based and GUI frontends are available. Install the MySQL version:

sudo apt-get install bacula

SBackup

SBackup is a common backup and restore utility for the GTK-desktop. Install using following command:

sudo apt-get install sbackup