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CAN/CSA-ISO/IEC-9945-2-96 (R2000)

Information technology - Portable Operating System Interface (POSIX)- Part 2 Shell and Utilities - Volume 1 and 2

SKU: 2412070 Published by CSA Group Publication Year 1996 Reaffirmed in 2000 1197 pages Withdrawn

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Preface/Scope

Scope

This part of ISO/IEC 9945 defines a standard source-code-Ievel interface
to command interpretation, or shell, services and common utility
programs for application programs. These services and programs are
complementary to those specified by ISOIIEC 9945-1: 1990 (IEEE Std
1003.1-1990) {S}, hereinafter referred to as POSIX.1 {S}. When the
User Portability Utilities Option is included, this part of ISO/IEC 9945
has additional scope. The list of utilities and features is extended to
provide a common interactive environment for system users and program
developers. This part of ISOIIEC 9945 has been designed to be used by
both application programmers and system implementors. When the User
Portability Utilities Option is included, it is also to be used by
system users and program developers. However, it is intended to be a
reference document and not a tutorial on the use of the services, the
utilities, or the interrelationships between the utilities. The emphasis
of this part of ISO/IEC 9945 without the User Portability Utilities
option is on the shell and utility functionality required by application
programs (including shell scripts) and not on the direct interactive
use of the shell command language or the utilities by humans. When the
User Portability Utilities Option is included, the emphasis is extended
to support terminal users in a consistent manner across all conforming
systems.

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