Bastrama is a command line tool to manage backup files that are stored on hard drives. It implements an infinite grandfather-father-son strategy by deleting a defined subset of all backup files, saving space while the files remains accessible in multiple versions (aka "virtual tape rotation").
BZip2/OSS-QM is the OSS-QM project's branch of bzip2, which contains a lot of fixes not yet in the original upstream. The primary goal is to provide QM'ed/fixed versions of upstream releases, so they can be built and used without additional patches, especially in sysrooted crosscompiling environments.
Back In Time is a simple backup tool for Linux (Gnome & KDE4) inspired by the "flyback project" and "TimeVault". The backup is done by taking snapshots of a specified set of directories. All you have to do is configure: where to save snapshot, what directories to backup, and when a backup should be done (manually, every hour, every day, every week, or every month). It acts as a "user mode" backup system. This means that you can backup and restore only folders to which you have write access.
The BRU Backup and Restore Utility features data-verified backups, scalability, configurability, and ease of use for Linux and Unix. Versions are available for Linux, FreeBSD, and most UNIX variants. It works via an X11 interface, command line interactive, or through a scripted, scheduled (CRON) mechanism.
Backup Monitor is an rsync backup front-end with a Web interface, which emails reports with an attached summary or logfile. Its configuration system is simple to use and can back up single servers or entire server farms from a single machine. Custom email tags can be used to sort responses in your mail reader.