Open System Services Porting Guide (G06.24+, H06.03+)

Interoperating Between User Environments
Open System Services Porting Guide—520573-006
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Scopes of Interoperability
Scopes of Interoperability
There are a number of views of interoperability between the OSS and Guardian
environments. They can be divided into three job responsibilities or audiences:
•
Those who develop application program interfaces (APIs), applications, and other
programs. To perform their jobs, this group relies on development tools including
editors, development utilities, compilers, linkers, optimizers, debuggers, and
performance analyzers. They work with entities such as run-time libraries, files,
functions, processes, and so forth. For more information on these topics and this
scope of interoperability, refer to the list of related programming guides in About
This Manual on page xx.
•
Those who provide system support and maintenance. This group manages and
controls the production, change, performance, problems, and daily system
operations of large systems and networks. To perform their jobs, this group relies
on utilities, applications, tools, and many other facilities. They work with logs (audit,
error, operator), physical devices (terminals, printers, tape drives, small and large
computers), and many other communications and distributed computing devices.
For more information on these topics and this scope of interoperability, refer to the
Open System Services Management and Operations Guide.
•
Those who use a NonStop system or other system to perform their daily job
responsibilities, which can be any task related to developing code or managing
computer systems. This group, usually called “users,” works mostly with the files
and interactive command interfaces of the OSS and Guardian environments.
The remainder of this section covers interoperating between user environments. For
more information on this scope of interoperability, refer to the Open System Services
User’s Guide.
The OSS User Environment
This subsection focuses on the factors that affect the operation of the OSS shell. It
includes an overview of OSS shell operations: start-up files, shell variables, functions,
command settings, and command editing modes. Refer to the Open System Services
User’s Guide for detailed information on working with the OSS shell.
OSS Shell
Most UNIX systems provide three shells for the interactive user: the Korn, Bourne, and
C shells. The OSS shell is compliant with the POSIX.2 standard (which is based on the
Korn shell). It has the same programming syntax as the Bourne shell but adds new
facilities for better interactive use.