C-h a then entering
backup, it lists the following matches, but not all of them (e.g. does not find the
Buffer-menu-backup-unmark M-x ... RET Move up and cancel all requested operations on buffer on line above. diff-backup M-x ... RET Diff this file with its backup file or vice versa. dired-backup-diff M-x ... RET Diff this file with its backup file or vice versa. dired-flag-backup-files M-x ... RET Flag all backup files (names ending with `~') for deletion. ediff-backup M-x ... RET Run Ediff on FILE and its backup file. magit-wip-initial-backup-mode M-x ... RET Before saving a buffer for the first time, commit to a wip ref. package-menu-backup-unmark M-x ... RET Back up one line and clear any marks on that package.