How To Make Backups

You can back up a directory hierarchy or complete file system to any
media using GNU tar or cpio, the standard *nix tools for this purpose.
tar seems to be the more commonly used program currently, and includes
command line options to make compressed, incremental, and multi-volume
backups. Complete information is contained in the documentation, which
is in GNU Texinfo format.

The free program, Amanda, receives a lot of mentions on Usenet. Its
home page is

Several commercial backup utilities also exist. They are often
included in commercial distributions.
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