Maybe she hadn't used fsn ever but could tell from the file system structure that it was in fact a UNIX system. Then she concluded that she need to find the cor

Maybe she hadn't used fsn ever but could tell from the file system structure that it was in fact a UNIX system. Then she concluded that she need to find the correct file - which is how UNIX does things. I did find the scene ridiculous at the time but it was because I didn't know UNIX or fsn. Now I find it very plausible.