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lions book
(foldoc) | Lions Book
"Source Code and Commentary on Unix level 6", by
John Lions.
The two parts of this book contained the entire source listing
of the Unix Version 6 kernel, and a commentary on the
source discussing the algorithms. These were circulated
internally at the University of New South Wales beginning
1976-77, and were, for years after, the *only* detailed kernel
documentation available to anyone outside Bell Labs.
Because Western Electric wished to maintain trade secret
status on the kernel, the Lions book was never formally
published and was only supposed to be distributed to
affiliates of source licensees (it is still possible to get a
Bell Labs reprint of the book by sending a copy of a V6 {source
licence} to the right person at Bellcore, but *real* insiders
have the UNSW edition). In spite of this, it soon spread by
samizdat to a good many of the early Unix hackers.
(http://peer-to-peer.com/catalog/history/lions.html).
In 1996 it was reprinted as a "classic":
[John Lions, "Lions' Comentary on UNIX 6th Edition with Source
Code", Computer Classics Revisited Series, Peer-to-Peer
Communications, 1996, ISBN 1-57398-013-7].
[Jargon File]
(1997-06-25)
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lions book
(jargon) | Lions Book
n.
Source Code and Commentary on Unix level 6, by John Lions. The two parts of
this book contained (1) the entire source listing of the Unix Version 6
kernel, and (2) a commentary on the source discussing the algorithms. These
were circulated internally at the University of New South Wales beginning
1976--77, and were, for years after, the only detailed kernel documentation
available to anyone outside Bell Labs. Because Western Electric wished to
maintain trade secret status on the kernel, the Lions Book was only
supposed to be distributed to affiliates of source licensees. In spite of
this, it soon spread by samizdat to a good many of the early Unix
hackers.
[1996 update: The Lions book lives again! It was put back in print as ISBN
1-57398-013-7 from Peer-To-Peer Communications, with forewords by Dennis
Ritchie and Ken Thompson. In a neat bit of reflexivity, the page before the
contents quotes this entry.]
[1998 update: John Lions's death was an occasion of general mourning in the
hacker community.]
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