In Z/OS Commands are broadly classified /divided into six different categories. And in a given point of time system has the limitation of executing only 50 commands at a time. Remaining commands will be in wait state for execution.
To view the commands which are waiting for execution operator can
use the following command
CMDS
Operator can able to remove the commands which are in waiting
status.. the removed command will issue the message IEE065I in console with
abend code 422.
Following are the list of command classes available in Z/OS
Ø Class M1 commands
Ø Class M2 commands
Ø Class M3 commands
Ø Class C1 commands
Ø Class C2 commands
Ø Class C3 commands
Following are the list of commands available under each classes..,
Class
M1 commands
M1 commands are used to clear backlogs and are essential commands and are attached to Master address space.
M1 commands are used to clear backlogs and are essential commands and are attached to Master address space.
·
DISPLAY GRS
·
DISPLAY MPF
·
DISPLAY
MSGFLD
·
DISPLAY
SLIP
·
DISPLAY XCF
·
DUMP
·
DUMPDS
·
QUIESCE
·
SET
·
SETMF
·
SETXCF
·
SLIP
·
VARY XCF
Class
M2 commands
M2 commands are common MVS and are attached to Master address space.
M2 commands are common MVS and are attached to Master address space.
·
ACTIVATE
|
D LOGGER
|
·
CONFIG
|
D LOGREC
|
·
DEVSERV
|
D MATRIX
|
·
DISPLAY
ALLOC
|
D MMS
|
·
DISPLAY
APPC
|
|
·
DISPLAY
ASCH
|
D PARMLIB
|
·
DISPLAY
ASM
|
D PROD
|
·
DISPLAY
CEE
|
D PROG
|
·
DISPLAY
CF
|
D RRS
|
·
DISPLAY
CNGRP
|
D RTLS
|
·
DISPLAY
DIAG
|
D SMF
|
·
DISPLAY
DLF
|
D SMS
|
·
DISPLAY
DUMP
|
D SSI
|
·
DISPLAY
ETR
|
D SYMBOLS
|
·
DISPLAY
HIS
|
D TCPIP
|
·
DISPLAY
IOS
|
D TRACE
|
·
DISPLAY
IKJTSO
|
D U
|
·
DISPLAY
IPLINFO
|
D UNI
|
·
DISPLAY
LLA
|
D VIRTSTOR
|
·
DISPLAY
WLM
|
SETPROG
|
·
HALT
EOD
|
SETSMF
|
·
IOACTION
|
SETSMS
|
·
LIBRARY
|
SETSSI
|
·
LOGON
(not MCS)
|
SETUNI
|
·
MOUNT
|
START
|
·
PAGEADD
|
SWAP
|
·
PAGEDEL
|
SWITCH
SMF
|
·
RESET
jobname
|
TRACE
|
·
SETALLOC
|
UNLOAD
|
·
SETAPPC
|
VARY
GRS
|
·
SETCEE
|
|
·
SETETR
|
VARY
PATH
|
·
SETGRS
|
VARY
SMS
|
·
SETIOS
|
VARY
SWITCH
|
·
SETLOGR
|
VARY
TCPIP
|
·
SETLOAD
|
VARY
WLM
|
·
SETLOGRC
|
D OMVS
|
·
SETOMVS
|
V ONLINE/OFFLINE
|
Class
M3 commands
M3 commands are common MVS and are attached to Master address space and it takes more time to execute.
M3 commands are common MVS and are attached to Master address space and it takes more time to execute.
·
SEND
Class
C1 commands
C1 commands are used to clear backlogs and are attached to Console address space .
C1 commands are used to clear backlogs and are attached to Console address space .
·
DISPLAY
CONSOLES
·
DISPLAY
EMCS
·
DISPLAY
R
·
LOGOFF
·
LOGON
(MCS)
·
REPLY
·
VARY
CN
·
VARY CONSOLE
Class
C2 commands
C2 commands are common commands and are attached to Console address space .
C2 commands are common commands and are attached to Console address space .
·
CHNGDUMP
·
CONTROL
M
·
DISPLAY
A
·
DISPLAY
C,K
·
DISPLAY
JOBS
·
DISPLAY
OPDATA
·
DISPLAY
PFK
·
DISPLAY
TS
·
RESET
CN
·
SETCON
Class
C3 commands
C3 commands are used simple commands and are attached to Console address space .These commands used to take more time to execute.
C3 commands are used simple commands and are attached to Console address space .These commands used to take more time to execute.
·
Route
