eb77c48dd3
Add Caldera license. Approved by: David Taylor <davidt@caldera.com> Make buildable under FreeBSD.
89 lines
2.8 KiB
Plaintext
89 lines
2.8 KiB
Plaintext
.\" Copyright (C) Caldera International Inc. 2001-2002. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions are
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.\" met:
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.\"
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.\" Redistributions of source code and documentation must retain the above
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.\" copyright notice, this list of conditions and the following
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.\" disclaimer.
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.\"
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.\" Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\"
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.\" This product includes software developed or owned by Caldera
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.\" International, Inc. Neither the name of Caldera International, Inc.
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.\" nor the names of other contributors may be used to endorse or promote
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.\" products derived from this software without specific prior written
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.\" permission.
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.\"
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.\" USE OF THE SOFTWARE PROVIDED FOR UNDER THIS LICENSE BY CALDERA
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.\" INTERNATIONAL, INC. AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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.\" DISCLAIMED. IN NO EVENT SHALL CALDERA INTERNATIONAL, INC. BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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.\" BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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.\" WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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.\" OR OTHERWISE) RISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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.\" IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.\" @(#)p1 8.1 (Berkeley) 6/8/93
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.\"
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.if n .ls 2
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.if t .tr |\(or
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.NH
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INTRODUCTION
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.PP
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This paper describes how to write
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programs
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that interface with the
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.UC UNIX
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operating system in a non-trivial way.
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This includes programs that use files by name,
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that use pipes,
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that invoke other commands as they run,
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or that attempt to catch interrupts and other signals
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during execution.
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.PP
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The document collects material which is scattered
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throughout several sections of
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.I
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The
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.UC UNIX
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Programmer's Manual
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.R
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[1]
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for Version 7
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.UC UNIX .
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There is no attempt to be complete;
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only generally useful material is dealt with.
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It is assumed that you will be programming in C,
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so you must be able to read the language
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roughly up to the level of
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.I
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The C Programming Language
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.R
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[2].
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Some of the material in sections 2 through 4
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is based on
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topics covered more carefully there.
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You should also be familiar with
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.UC UNIX
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itself
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at least
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to the level of
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.I
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.UC UNIX
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for Beginners
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.R
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[3].
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