Library /sys$common/syshlp/EVE$HELP.HLB  —  SET_FILE_BACKUP
  SET FILE BACKUP    (default on ULTRIX)

  Enables making backup copies of existing files before overwriting them.

  Usage notes:

  o  The file backup setting applies only to ULTRIX systems. (See help on
     ULTRIX Differences)

  o  Backup copies are made when you write out a buffer or save a section
     file or command file. The setting applies to the following commands:

           DELETE BUFFER             EXIT               SAVE FILE
           SAVE FILE AS              SAVE ATTRIBUTES    SAVE EXTENDED EVE
           SAVE SYSTEM ATTRIBUTES    WRITE FILE

  o  You can customize the control string used to create the backup file
     spec from your output file spec. You can specify the location
     (directory), name, and version number (if any) of backup files. For
     more information, see help on SET BACKUP CONTROL STRING.

  o  Using SET FILE BACKUP can jepordize recovery with a keystroke journal
     file if you customized the backup control string to not include version
     numbers in your backup file specs. For more information, see help on
     SET BACKUP CONTROL STRING.

  o  SET FILE BACKUP is a global attribute which you can save for future
     editing sessions by creating a section file or by creating or updating
     a command file. See help on Attributes.

     +-----------------------------------------------------+
     | The SET FILE BACKUP command applies only to ULTRIX  |
     | systems.  It is disabled on VMS systems.            |
     +-----------------------------------------------------+

  Related topics:

     Attributes           SET BACKUP CONTROL STRING
     SET NOFILE BACKUP    SHOW FILE BACKUP
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