🚀 go-pugleaf

If you are trying to help naive users, then you also need to address the 
problem of associating the proper keyword with the desired command.  
Spelling correction might help in this process, but errors will often 
not be a matter of spelling.  Is there also a problem of generating 
"corrections" that do not map onto Unix commands at all?  I can't tell 
from your posting.

Anyway, you might want to take a look at this article:

Dumais, Susan T., George W. Furnas, Thomas K. Landauer, 
Scott Deerwester, and Richard Harshman.  Using Latent Semantic Analysis 
to Improve Access to Textual Information.   Proceedings of CHI '88.  
281-85.

I hope I have grabbed the right reference.  I associate the work with 
Landauer and Furnas, and that's the only citation I have in my 
bibliography for Furnas.  It will get you on the track in any case.

--Jim

Dr. James H. Coombs
Senior Software Engineer, Research
Institute for Research in Information and Scholarship
Box 1952, Brown University, Providence, RI 02912