SNAX/APC Configuration and Management Manual

Introduction to SCF for SNAX/APC
SNAX/APC Configuration and Management Manual—138787
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Sensitive and Nonsensitive Commands
INFO command to display the current attribute values for objects, and the STATUS
command to display the current dynamic status of objects.
The ASSUME command defines a default object to be used when the object is omitted
from an SCF command. The TRACE command traces the operation of an object.
While being traced, the object continues normal operation, but it passes all message
traffic to a trace procedure. When the trace procedure recognizes a message that meets
its selection criteria, it stores the message in a trace file. You can then use APCTAP
program commands to examine the file.
Several commands are available for displaying and changing SCF session parameters.
For example, the SYSTEM and VOLUME commands control the default system,
volume, and subvolume names used for expanding file names. The OBEY and OUT
commands control the files used for command input and display output.
The HELP command can be used in several different ways. In its basic form, it displays
a list of the available SCF commands. You can also request additional specific
information, such as command syntax, for each command. For most subsystems, you
can also request subsystem-specific information for their commands.
The RUN command allows you to run another program during an SCF session.
Sensitive and Nonsensitive Commands
Because some commands can have detrimental effects if improperly used, special
qualification is required to use them. These commands are called sensitive commands.
A sensitive command is one that can be issued only by a user with super-group access,
the owner of the subsystem, or a member of the same group as the owner of the
subsystem. When used in conjunction with the security features of the operating
system, SCF provides effective access control for sensitive commands. Commands that
request information or status but do not affect operation are called nonsensitive
commands. Nonsensitive commands are available to all users.
General Command Format
An SCF command always begins with a keyword identifying the command (such as
START or TRACE).
If the command pertains only to the current SCF session, the keyword is followed
immediately by whatever additional parameters are required to specify the action to be
taken by SCF. For example, the SYSTEM command can be entered as
SYSTEM \system-name, where system-name is the name of the system that is to
become the default system.
Note. For a complete description of the general SCF commands mentioned in this section,
refer to the Subsystem Control Facility (SCF) Reference Manual.
For more information about APCTAP, refer toPart I, SNAX/APC Planning and Configuration
.