$kept-versions(5)

NAME

$kept-versions - Number of backups to be kept

SYNOPSIS

$kept-versions integer; Default is 0

0 <= integer <= n

DESCRIPTION

$kept-versions can only be used when DOS file name restrictions are not enabled. This means that some systems (such as DOS) cannot use this functionality, see $system(5) for more information. Backup files are only created when buffer mode backup(2m) is enabled.

$kept-versions allows the user to specify the number of backup versions that are required for each file. For file "XXXX", each backup version is renamed to "XXXX.~?~", where ? is the backup number. If $kept-versions is set to 0 this feature is disabled and the default single backup file is created.

The most recent backup will always be .~0~ and the last version will be .~n~ where n is $kept-versions - 1. when the file is next saved the .~0~ backup file is moved to .~1~, .~1~ to .~2~ etc, backup .~n~ is removed. Evidently if $kept-versions it set to a large number this can effect performance.

SEE ALSO

$system(5), backup(2m), autosv(2m), save-buffer(2).

(c) Copyright JASSPA 1999
Last Modified: 1998/08/27
Generated On: 1999/12/01