I went round to see my copy editor today. I had to deliver a copy of the worm book, and she had asked if I could give her a lesson in *nix.
Of course, I gave her, free. the most important command anyone could ever learn for Linux :
No [aArRgGhH]
as soon as she raised the possibility. But she assured me that she had already got two installations running, she had learnt that it was a disaster, and she still dreamt of freedom from Microsoft.