This is the original dons' blog post (easier to read on the web than slides) :<p><a href="http://donsbot.wordpress.com/2007/03/10/practical-haskell-shell-scripting-with-error-handling-and-privilege-separation/" rel="nofollow">http://donsbot.wordpress.com/2007/03/10/practical-haskell-sh...</a><p>An interesting read !