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Path: utzoo!utgpu!water!watnot!watmath!clyde!rutgers!seismo!mcvax!inria!axis!philip
From: philip@axis.UUCP
Newsgroups: comp.sources.d
Subject: Re: Lions book
Message-ID: <212@axis.fr>
Date: Sat, 4-Apr-87 17:18:55 EST
Article-I.D.: axis.212
Posted: Sat Apr  4 17:18:55 1987
Date-Received: Sun, 5-Apr-87 15:04:28 EST
References: <483@gouldsd.UUCP> <804@aw.sei.cmu.edu.sei.cmu.edu> <751@goanna.oz> <3852@amd.UUCP>
Organization: Axis Digital, Paris
Lines: 27
Keywords: uucp AT&T Lions
Summary: Lyons vs Bach

In article <3852@amd.UUCP>, phil@amd.UUCP writes:
> In article <18114@ucbvax.BERKELEY.EDU> schoet@ernie.Berkeley.EDU.UUCP (Steve Schoettler) writes:
> >
> >  Supposing one's site did have source licenses and one had signed
> >non-disclosure agreements, how would one get ahold of this book?
> 
> Would someone who has seen both the Lions book and the Bach book care
> to comment on whether there is any reason to bother getting the former
> now that the latter is available? 

The distribution of the John Lyons book was taken over by Western Electric
(AT&T). It never appeared on any of their publication lists, but was
available if you asked for it. I don't know if it is still available.

It is basically a complete source listing of V6 UNIX (kernel), with
an acompanying description of how it works - on a line by line basis.

It is probably still a good introduction to the UNIX kernel, but (obviously)
at least a V6 source licence would be required to go with it.

If you have a S5 source, then the book by Maurice Bach is a much better
bet. The algorithms he describes are those actually in current use, wheras
the internals of UNIX have changed considerably since V6.

A BIG plus for the Bach book is that no source licence is required.

Philip