This is documentation for Mathematica 8, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.2)

NotebookAutoSave

NotebookAutoSave
is a notebook option which specifies whether the notebook should automatically be saved after each piece of output generated by evaluation in it.
Create a notebook with NotebookAutoSave->True and save it to a file:
Check the time of creation of the notebook file:
When you evaluate an input, the notebook is automatically resaved:
This shows the newer modification time of the file:
Create a notebook with NotebookAutoSave->True and save it to a file:
In[1]:=
Click for copyable input
In[2]:=
Click for copyable input
Check the time of creation of the notebook file:
In[4]:=
Click for copyable input
Out[4]=
When you evaluate an input, the notebook is automatically resaved:
This shows the newer modification time of the file:
In[6]:=
Click for copyable input
Out[6]=
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