Variable: version-control

version-control is a customizable variable defined in files.el.gz.

Value

nil

Documentation

Control use of version numbers for backup files.

When t, make numeric backup versions unconditionally. When nil, make them for files that have some already. The value never means do not make them.

View in manual

Probably introduced at or before Emacs version 17.

Source Code

;; Defined in /usr/src/emacs/lisp/files.el.gz
(defcustom version-control nil
  "Control use of version numbers for backup files.
When t, make numeric backup versions unconditionally.
When nil, make them for files that have some already.
The value `never' means do not make them."
  :type '(choice (const :tag "Never" never)
		 (const :tag "If existing" nil)
                 (other :tag "Always" t))
  :safe #'version-control-safe-local-p
  :group 'backup)