While I agree that there's much of the UHHB that is still valid (and what's not valid is still funny), I don't think that's a good example. Modern kill allows

While I agree that there's much of the UHHB that is still valid (and what's not valid is still funny), I don't think that's a good example. Modern kill allows you to provide the signal name if you wish. I don't think it's a particularly good criticism of kill that it also allows you to use a numeric shorthand if you wish (even if that shorthand is very popular). I think the UUHB is mostly worth reading to understand the absolutely dismal state of proprietary Unix in the 90s. It explains why technical reasons contributed to the growth of both Windows NT and GNU.