NET/MASTER Network Control Language (NCL) Programmer's Guide

Entering NonStop NET/MASTER MS Commands From an NCL Process

Environments and Command Processing

16–18 106160 Tandem Computers Incorporated

Entering NonStop

NET/MASTER MS

Commands From an

NCL Process

If you want to enter a NonStop NET/MASTER MS command from an NCL process,

you must use either the CMD core statement or the INTCMD verb. The difference

between CMD and INTCMD lies in the environment to which each sends the NonStop

NET/MASTER MS command for execution. This in turn affects where the results of

the NonStop NET/MASTER MS command are returned, which determines whether

the NCL process that executes CMD or INTCMD receives the results.

This subsection explains how to enter NonStop NET/MASTER MS commands,

including the START and EXEC commands, from an NCL process, using the CMD

core statement and the INTCMD verb. It discusses command entry restrictions from

an NCL process.

Entering Commands Using

the CMD Core Statement

The CMD core statement sends the NonStop NET/MASTER MS command that

follows it for execution in the same environment in which the NCL process is

executing. From the point of view of the NCL process, this is the current execution

environment. The NonStop NET/MASTER MS command and the NCL process are

processed asynchronously.

The results are not returned to the NCL process that executes CMD: this NCL process

never receives the results. Where the results are returned, depends on the type of

current execution environment in which the NCL process is executing: for example, if

the NCL process is executing in a primary processing environment attached to an OCS

window, the results are sent to the OCS window.

The general syntax of the CMD core statement is:

CMD

nnm-command

specifies the name of a NonStop NET/MASTER MS command.