B                                                                  Menu: FILES
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Saves the current model on a file named AUTOSAVE.
(A nested command.)

     if AUTOSAVE already exists:
        1. (Y/N) AUTOSAVE already exists, want to overwrite? y
     if reply `n':
        2. ! use \save or \fcopy to prevent overwriting:

Description:
This command creates a backup file of the current model, in a file named
AUTOSAVE. In case problems occur with the current file (e.g., power failure),
or hardware and/or software errors occur, you may restore the latest backup
made with \b, by entering:
                          \load autosave
a prompt will warn you to prevent overwriting.
