5.4 Setting Parameters for Backups and Restoration
The file backup-specs specifies backup parameters for the
backup and restoration scripts provided with tar. You must
edit backup-specs to fit your system configuration and schedule
before using these scripts.
Syntactically, backup-specs is a shell script, containing
mainly variable assignments. However, any valid shell construct
is allowed in this file. Particularly, you may wish to define
functions within that script (e.g., see RESTORE_BEGIN below).
For more information about shell script syntax, please refer to
the definition of the Shell Command Language. See also
The shell variables controlling behavior of backup and
restore are described in the following subsections.