z/VM: CP Commands and Utilities Reference - z/VM - IBM

Usage Notes
specific IBM class associated with the specified CP command. The variable c is
the IBM-defined privilege class A, B, C, D, E, F, or G.
IBMclass 0
specifies that you only want to find the command table entry blocks for CP
commands with no assigned IBM class. Only commands with privilege class
“ANY” have no assigned IBM class.
1. For each command, CP has at least 1 command table entry block. If the
command has more than 1 IBM class, CP has 1 command table entry block
for each version of the command. For example, the DEFINE command has 3
IBM classes: A, E, and G. To locate the command table entry block for the
DEFINE GRAF command, you want the command table entry block for the
class G DEFINE command:
locate cmdbk define ibmclass g
The only exceptions to this are the QUERY and SET commands. CP has at
least 1 command table entry block for each QUERY and SET subcommand. To
locate the command table entry block for the QUERY TIMEZONES
subcommand, you would issue 1 of the following commands:
locate cmdbk query subcmd timezones
locate cmdbk query subcmd timezones ibmclass g
2. You can use the minimum abbreviation of the command or subcommand
name. For example, issuing either of the following commands produces the
same results:
locate cmdbk query subcmd privclass
locate cmdbk q subcmd priv
3. To define a new CP command or a new version (by IBM class) of an existing
CP command, use the DEFINE COMMAND or CMD command (page 134).
4. To define a new alias for an existing CP command, use the DEFINE ALIAS
command (page 119).
5. To load the command processing code into CP’s system execution space, use
the CPXLOAD command (page 101).
6. To activate a CP command:
v While defining it, use the ENABLE operand of the DEFINE COMMAND or
CMD command (page 134).
v After defining it, use the ENABLE COMMAND or CMD command (page
426).
7. To change the definition of an existing CP command, use the MODIFY
COMMAND command (page 599).
8. To deactivate a CP command:
LOCATE CMDBK
v While defining it, use the DISABLE operand of the DEFINE COMMAND or
CMD command (page 134).
v After defining it, use the DISABLE COMMAND or CMD command (page
263).
9. To remove the command processing code from CP’s system execution space,
use the CPXUNLOAD command (page 107).
10. For more information about user-defined commands, see the z/VM: CP Exit
Customization book.
Chapter 2. CP Commands 529