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.