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.
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