Section 3. CP Commands
The CP commands represent a set of interactive console functions that
the operator uses to control the VM/370 system, and that permit user
control of virtual machines. CP indicates the results of command processing with a conversational response, if appropriate (for example, COMMAND COMPLETE, MISSING ARGUMENT, or INVALID OPTION). The commands
that a VM/370 user (including the operator) can issue depend upon the
user's assigned privilege class(es), as described in the paragraphs. PRIVILEGE CLASSES FOR CP COMMANDS The CP co •• ands are divided into eight groups, each represented by a
privilege class that indicates the type of user from which the commands are accepted. Each user is assigned, as part of his entry in the VM/370 directory, one or more privilege classes (Figure 4 shows the function of
each class). The exceptions are users with a Iassword of NOLOG. The BaLOG ,users have no privilege class and can only send .essages via the command or receive spooled output as punched cards or printed
forms. The BOLOG password allows them to be identified as the
recipients of spooled output when a virtual machine user spools output
for them. Section 3. CP Commands 37

I IClass User and Function 1------- ------------------------------------------------------------------- I Al The class A user controls the I I I I Cl FI G2
H V8/370 system. Class A is assigned to the user at the V8/370 system console during IPL. The primary system operator is
responsible for the availability of the V6/370 systs. and its
communication lines and resources. In addition, the class A
user controls system accounting, broadcast messages, virtual
machine performance options and other command operands that
affect the overall performance of V8/370. The class A system operator who is automatically logged
on during CP initialization is designated as the primary system operator. The class B user controls all the
real resources of the V8/370 system, except those controlled
by the primary system operator and spooling operator. The class C user updates certain
functions of the VM/370 system. The class D user controls spool data
files and specific functions of the system's unit record
equipment. The class E user examines and saves certain
data in the Y8/370 storage area. The class F user obtains, and
examines, in detail, certain data about input and output
devices connected to the VM/370 system. General User: The class G user controls functions associated iIth-the-execution of his virtual machine.
The Any classification is given to certain CP commands that
are available to any user. These are Frimarily for the
purpose of gaining and relinquishing access to the V8/370 system. Reserved for IB8 use. IDescribed in this publication.
2Described in the £f !2! Figure q. CP Privilege Class Descriptions
In most cases, a user is assigned to the class G commands. Any attempt by a user to issue a command that is not within his command
classes causes an error response from CPa Figure 5 shows the commands that are accepted from each user command class. Some commands fall into more than one class. In those cases, the major operands of those
commands are shown in the classes in which they are valid.
38 V8/370 Operator's Guide