Auto-Saving: Protection Against Disasters
Emacs saves all the visited files from time to time (based on counting
your keystrokes) without being asked. This is called auto-saving.
It prevents you from losing more than a limited amount of work if the
system crashes.
When Emacs determines that it is time for auto-saving, each buffer is
considered, and is auto-saved if auto-saving is turned on for it and it
has been changed since the last time it was auto-saved. The message
Auto-saving... is displayed in the echo area during auto-saving,
if any files are actually auto-saved. Errors occurring during
auto-saving are caught so that they do not interfere with the execution
of commands you have been typing.
- Files: The file where auto-saved changes are
actually made until you save the file.
- Control: Controlling when and how often to auto-save.
- Recover: Recovering text from auto-save files.
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