Variable: backup-by-copying
backup-by-copying is a customizable variable defined in files.el.gz.
Value
nil
Documentation
Non-nil means always use copying to create backup files.
See documentation of variable make-backup-files.
Source Code
;; Defined in /usr/src/emacs/lisp/files.el.gz
(defcustom backup-by-copying nil
"Non-nil means always use copying to create backup files.
See documentation of variable `make-backup-files'."
:type 'boolean
:group 'backup)