(tar.info.gz) General-Purpose Variables

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(tar.info.gz) Backup Parameters

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 5.4.1 General-Purpose Variables
 -------------------------------
 
  -- Backup variable: ADMINISTRATOR
      The user name of the backup administrator.  'Backup' scripts sends
      a backup report to this address.
 
  -- Backup variable: BACKUP_HOUR
      The hour at which the backups are done.  This can be a number from
      0 to 23, or the time specification in form HOURS:MINUTES, or the
      string 'now'.
 
      This variable is used by 'backup'.  Its value may be overridden
      using '--time' option ( Scripted Backups).
 
  -- Backup variable: TAPE_FILE
 
      The device 'tar' writes the archive to.  If TAPE_FILE is a remote
      archive ( remote-dev), backup script will suppose that your
      'mt' is able to access remote devices.  If RSH ( RSH) is
      set, '--rsh-command' option will be added to invocations of 'mt'.
 
  -- Backup variable: BLOCKING
 
      The blocking factor 'tar' will use when writing the dump archive.
       Blocking Factor.
 
  -- Backup variable: BACKUP_DIRS
 
      A list of file systems to be dumped (for 'backup'), or restored
      (for 'restore').  You can include any directory name in the list --
      subdirectories on that file system will be included, regardless of
      how they may look to other networked machines.  Subdirectories on
      other file systems will be ignored.
 
      The host name specifies which host to run 'tar' on, and should
      normally be the host that actually contains the file system.
      However, the host machine must have GNU 'tar' installed, and must
      be able to access the directory containing the backup scripts and
      their support files using the same file name that is used on the
      machine where the scripts are run (i.e., what 'pwd' will print when
      in that directory on that machine).  If the host that contains the
      file system does not have this capability, you can specify another
      host as long as it can access the file system through NFS.
 
      If the list of file systems is very long you may wish to put it in
      a separate file.  This file is usually named '/etc/backup/dirs',
      but this name may be overridden in 'backup-specs' using 'DIRLIST'
      variable.
 
  -- Backup variable: DIRLIST
 
      The name of the file that contains a list of file systems to backup
      or restore.  By default it is '/etc/backup/dirs'.
 
  -- Backup variable: BACKUP_FILES
 
      A list of individual files to be dumped (for 'backup'), or restored
      (for 'restore').  These should be accessible from the machine on
      which the backup script is run.
 
      If the list of individual files is very long you may wish to store
      it in a separate file.  This file is usually named
      '/etc/backup/files', but this name may be overridden in
      'backup-specs' using 'FILELIST' variable.
 
  -- Backup variable: FILELIST
 
      The name of the file that contains a list of individual files to
      backup or restore.  By default it is '/etc/backup/files'.
 
  -- Backup variable: MT
 
      Full file name of 'mt' binary.
 
  -- Backup variable: RSH
      Full file name of 'rsh' binary or its equivalent.  You may wish to
      set it to 'ssh', to improve security.  In this case you will have
      to use public key authentication.
 
  -- Backup variable: RSH_COMMAND
 
      Full file name of 'rsh' binary on remote machines.  This will be
      passed via '--rsh-command' option to the remote invocation of GNU
      'tar'.
 
  -- Backup variable: VOLNO_FILE
 
      Name of temporary file to hold volume numbers.  This needs to be
      accessible by all the machines which have file systems to be
      dumped.
 
  -- Backup variable: XLIST
 
      Name of "exclude file list".  An "exclude file list" is a file
      located on the remote machine and containing the list of files to
      be excluded from the backup.  Exclude file lists are searched in
      /etc/tar-backup directory.  A common use for exclude file lists is
      to exclude files containing security-sensitive information (e.g.,
      '/etc/shadow' from backups).
 
      This variable affects only 'backup'.
 
  -- Backup variable: SLEEP_TIME
 
      Time to sleep between dumps of any two successive file systems
 
      This variable affects only 'backup'.
 
  -- Backup variable: DUMP_REMIND_SCRIPT
 
      Script to be run when it's time to insert a new tape in for the
      next volume.  Administrators may want to tailor this script for
      their site.  If this variable isn't set, GNU 'tar' will display its
      built-in prompt, and will expect confirmation from the console.
      For the description of the default prompt, see  change volume
      prompt.
 
  -- Backup variable: SLEEP_MESSAGE
 
      Message to display on the terminal while waiting for dump time.
      Usually this will just be some literal text.
 
  -- Backup variable: TAR
 
      Full file name of the GNU 'tar' executable.  If this is not set,
      backup scripts will search 'tar' in the current shell path.
 

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(tar.info.gz) Backup Parameters

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