|UNIX_Programmers_Manual_2ed_Jun72.pdf|| UNIX PROGRAMMER'S MANUAL
D. M. Ritchie
Jun e 1 2 , 1 972
Copyright @ 1972
Bell Telephone Laboratories, Inc.
No part of this document may pe reproduced,
_ or distributed outside the Laboratories, without
t.he written permission of Bell Telephone Laboratories.
to the Second Edition
In the months since this manual first appeared, many changes have
occurred both in the system itself and in the way it is used.
Perhaps most obviously, there have been additions, deletions, and
modifications to the system and its software. It is these
changes, of course, that caused the appearance of this revised
Second, the number of pe::>ple spending an appreciabl e amount of
time writing UNIX software has increased. Credit is due to
L. L. Cherry, M. D. McIlroy, L. E. M|