[unix-history] / .ref-BSD-3 / usr / doc / uprog / p1

.if n .ls 2
.if t .tr |\(or
.NH
INTRODUCTION
.PP
This paper describes how to write
programs 
that interface with the
.UC UNIX
operating system in a non-trivial way.
This includes programs that use files by name,
that use pipes,
that invoke other commands as they run,
or that attempt to catch interrupts and other signals
during execution.
.PP
The document collects material which is scattered
throughout several sections of
.I
The
.UC UNIX
Programmer's Manual
.R
[1]
for Version 7
.UC UNIX .
There is no attempt to be complete;
only generally useful material is dealt with.
It is assumed that you will be programming in C,
so you must be able to read the language
roughly up to the level of
.I
The C Programming Language
.R
[2].
Some of the material in sections 2 through 4
is based on
topics covered more carefully there.
You should also be familiar with
.UC UNIX
itself
at least
to the level of
.I
.UC UNIX
for Beginners
.R
[3].
Commit	Line	Data
8340f87c BJ	1	.if n .ls 2
	2	.if t .tr \|\(or
	3	.NH
	4	INTRODUCTION
	5	.PP
	6	This paper describes how to write
	7	programs
	8	that interface with the
	9	.UC UNIX
	10	operating system in a non-trivial way.
	11	This includes programs that use files by name,
	12	that use pipes,
	13	that invoke other commands as they run,
	14	or that attempt to catch interrupts and other signals
	15	during execution.
	16	.PP
	17	The document collects material which is scattered
	18	throughout several sections of
	19	.I
	20	The
	21	.UC UNIX
	22	Programmer's Manual
	23	.R
	24	[1]
	25	for Version 7
	26	.UC UNIX .
	27	There is no attempt to be complete;
	28	only generally useful material is dealt with.
	29	It is assumed that you will be programming in C,
	30	so you must be able to read the language
	31	roughly up to the level of
	32	.I
	33	The C Programming Language
	34	.R
	35	[2].
	36	Some of the material in sections 2 through 4
	37	is based on
	38	topics covered more carefully there.
	39	You should also be familiar with
	40	.UC UNIX
	41	itself
	42	at least
	43	to the level of
	44	.I
	45	.UC UNIX
	46	for Beginners
	47	.R
	48	[3].