.nr PS 9
.nr VS 11
.vs 11p
.ps 9p
.TL
PREFACE
.LP
This manual reflects the state of the Berkeley system, December 1979.
We would like to thank all the people at Berkeley who have contributed to
the system, and particularly thank
Prof. Richard Fateman for creating and administrating a hospitable environment,
Mark Horton who helped prepare this manual, and
Eric Allman, Bob Kridle, Juan Porcar
and Richard Tuck for their contributions to the kernel.
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The cooperation of Bell Laboratories in providing us with an early version of
\s-2UNIX\s0/32V is greatly appreciated.  We would especially like to thank
Dr. Charles Roberts of Bell Laboratories for helping us obtain this release,
and acknowledge
T. B. London,
J. F. Reiser,
K. Thompson,
D. M. Ritchie,
G. Chesson and
H. P. Katseff
for their advice and support.
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W. N. Joy
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O. Babaoglu
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.ce
\fIPreface to the UNIX/32V distribution\fP
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The
.UX
operating system for the VAX*-11
.FS
*VAX and PDP are Trademarks of Digital Equipment Corporation.
.FE
provides substantially the same facilities as the
\s-2UNIX\s0
system for the PDP*-11.
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We acknowledge the work of many who came before us, and particularly thank
G. K. Swanson, W. M. Cardoza, D. K. Sharma, and J. F. Jarvis for assistance
with the implementation for the VAX-11/780.
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T. B. London
.br
J. F. Reiser
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\fIPreface to the Seventh Edition\fP
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Although this Seventh Edition no longer bears their byline,
Ken Thompson and Dennis Ritchie remain the fathers
and preceptors of the
\s-2UNIX\s0
time-sharing system.
Many of the improvements here described bear their mark.
Among many, many other people who have contributed to
the further flowering of
\s-2UNIX\s0,
we wish especially to
acknowledge the contributions of
A. V. Aho,
S. R. Bourne,
L. L. Cherry,
G. L. Chesson,
S. I. Feldman,
C. B. Haley,
R. C. Haight,
S. C. Johnson,
M. E. Lesk,
T. L. Lyon,
L. E. McMahon,
R. Morris,
R. Muha,
D. A. Nowitz,
L. Wehr,
and
P. J. Weinberger.
We appreciate also 
the effective advice and criticism of
T. A. Dolotta,
A. G. Fraser,
J. F. Maranzano,
and
J. R. Mashey;
and we remember the important work of
the late Joseph F. Ossanna.
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B. W. Kernighan
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M. D. McIlroy
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