25 Backups and Auto-Saving ************************** Backup files and auto-save files are two methods by which Emacs tries to protect the user from the consequences of crashes or of the user’s own errors. Auto-saving preserves the text from earlier in the current editing session; backup files preserve file contents prior to the current session.
· Backup Files How backup files are made; how their names are chosen. · Auto-Saving How auto-save files are made; how their names are chosen. · Reverting ‘revert-buffer’, and how to customize what it does.