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+.\" Copyright (C) Caldera International Inc. 2001-2002.  All rights reserved.
+.\" 
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions are
+.\" met:
+.\" 
+.\" Redistributions of source code and documentation must retain the above
+.\" copyright notice, this list of conditions and the following
+.\" disclaimer.
+.\" 
+.\" Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\" 
+.\" All advertising materials mentioning features or use of this software
+.\" must display the following acknowledgement:
+.\" 
+.\" This product includes software developed or owned by Caldera
+.\" International, Inc.  Neither the name of Caldera International, Inc.
+.\" nor the names of other contributors may be used to endorse or promote
+.\" products derived from this software without specific prior written
+.\" permission.
+.\" 
+.\" USE OF THE SOFTWARE PROVIDED FOR UNDER THIS LICENSE BY CALDERA
+.\" INTERNATIONAL, INC.  AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+.\" DISCLAIMED.  IN NO EVENT SHALL CALDERA INTERNATIONAL, INC. BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT INCIDENTAL, SPECIAL, EXEMPLARY, OR
+.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+.\" BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+.\" WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+.\" OR OTHERWISE) RISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+.\" IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.\" 
+.\" $FreeBSD$
+.\"
+.\"	@(#)p0	8.1 (Berkeley) 6/8/93
+.\"
+.if n .ls 1
+.\" .TM 78-1273-9 39199 39199-11
+.\" .ND October 2, 1978
+.\" .old TM 75-1273-11 October 22, 1975
+.OH 'UNIX Programming \(em Second Edition''PSD:4-%'
+.EH 'PSD:4-%''UNIX Programming \(em Second Edition'
+.TL
+UNIX Programming \(em Second Edition
+.AU "MH 2C-518" 6021
+Brian W. Kernighan
+.AU "MH 2C-517" 3770
+Dennis M. Ritchie
+.AI
+AT&T Bell Laboratories
+Murray Hill, NJ 07974
+.AB
+.PP
+This paper is an introduction to programming on
+the
+.UX
+system.
+The emphasis is on how to write programs that interface
+to the operating system,
+either directly or through the standard I/O library.
+The topics discussed include
+.IP "  \(bu"
+handling command arguments
+.IP "  \(bu"
+rudimentary I/O; the standard input and output
+.IP "  \(bu"
+the standard I/O library; file system access
+.IP "  \(bu"
+low-level I/O: open, read, write, close, seek
+.IP "  \(bu"
+processes: exec, fork, pipes
+.IP "  \(bu"
+signals \(em interrupts, etc.
+.PP
+There is also an appendix which describes
+the standard I/O library in detail.
+.AE
+.\" .CS 17 0 17 0 0 4