Use this notebook as a basic text file editor.
Run the cell below to load the content of a specified file (/path/or/url can be replaced either by a local path or an URL).
The content of the file/url will be added in a new cell created just below.
Insert the following line at the top of the new created cell (/path/to/saved/file can be replaced either by a full path to a new, non-existing file or by the same path than the original file to overwrite it):
%%writefile /path/to/saved/file
In [1]:
%load /path/or/url