🚀 go-pugleaf

I have prompted a user for a data filename using 
   filename=input('Data file to read: ', 's');
and now I need to do some manipulations on the file to break it
into matrices for Matlab to load.  This is most easily done with
shell commands from my m-file, but I have to pass the string in 
"filename" to the shell so that I can manipulate the selected file
(Matlab wont export variable values to shell commands).
One way might be to save the filename as
  save tmp_file filename -ascii
but this just saves digits for the letters of the filename.  Is there
a way to save the actual ascii text to a file?

  -- Dave Hampton