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`UNIX
`User’s Manual
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`Release 3.0
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`T. A. Dolotta
`S. B. Olsson
`A. G. Petruccelli
`
` Editors
`_,_.
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`2
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`3
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`Copyright 01980 Bell Telephone Laboratories, Inc.
`UNIX is :Trademark ofBell'Tolephone Laboratories. Inc.
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`3
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`ACKNOWLEDGEMENTS
`
`
`
`The form and much of the content of this manual come from the UNIX
`'3 Hymnal-Several: Edition (Volume 1). developed by M. D.
`In nddmon. ports of the present manual‘s contents are descended
`.
`M
`from e ([be
`r's Manual-Sixth Edition by K. Thompson and
`D. M. Ritchie (
`Laboratories, May I975),
`the UNIX/IS User's
`Equal-Won 1.! by 'l'. A. Dolotts and S. B. Olsson, eds. (Bell Labora-
`tnnee, 1091979). and the FWD/UNIX User's Manual-Release 2.0 (Bell
`
`Inheritance. June 1979). P. E. anata and G. C. Vogel rewrote Section 2
`ft! this'edition. Many members of Centers 127 and 135, and of Laboratory
`.'
`in the creation of this volume; their help is hereby gratefully
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