r I Class I , G I (cont.) , Commands DETACH DETACH DISPLAY DUMP ECHO EXTERNAL INDICATE
IPL T T J...Ll'ln. LOADVFCB NOTREADY ORDER PURGE QrrERY ._---,
Operands
LINE
GRAF STORAGE vaddr device! CHANNEL LOAD USER ALL CHANNELS CONSOLE DASD FILES CUPID GFAF LINES LINKS LOGMSG NAMES PFnn
PRINTER PUNCH PPOCESSOR READER SET STORAGE TAPES TERMINA L
TIME UR r- I Class , I G , (cont. )
Commands READY REQUEST RESET REWIND SET SMSG SPOOL STORE SY STEM TAG
TERMINAL
TRACE
TRANSFER VMDUMP Operands userid USERS vaddr l1TDlTlnllT • ..&..1.\..L un..LI A.FFINITY A.CNT ASSIST AUTOPOLL CPUID ECMODE EMS:; IMS:; ISAM LINEDIT MSG NOTRANS PAGEX PFnn RUN SMS:; TIMER WNG DEV FILE QUERY ,1For valid device types I see the discussion of the DEFINEI I command in Section 5. I ___________________________ ---J L J
Fiqure 4. Commands Accepted from Each User Class (Part 3 of 3) Section 2. The CP Command Language 11

THE CLASS G C8MMANDS Commands in the general user class enable the user to control the
operation of a virtual machine through using its virtual operator's
console device much as a real machine is controlled through its system
control For example, commands are included in the general user class that
enable the user to perform the following operations: load an operating
system (IPL command); start or restart program execution in the virtual
machine (BEGIN command); stop virtual machine execution at a specified
virtual storage address (ADSTOP command); reset and restart the virtual
machine RESET and SYSTEM RESTART commands); store and display
data contained in virtual storage, registers (general, floating-point,
and control), and status words such as the PSW (STORE and DISPLAY commands); iisplay storage keys, the CSW, and the :!W (DISPLAY command); clear virtual storage to zeros (SYSTEM CLEAR command);
simulate external interruption for the CPU timer, clock comparator,
or external interruption button on the system console (EXTERNAL command); initiate tracing facilities (TRACE command).
THE CLASS ANY COMMANDS The Anv commands comprise those commands that are available, with
the same format and operands, to all user classes. The LOGON command is used tJ gain initial access to the VM/370 system. This command also identifies you to the system and sets up your virtual machine. The DIAL command allows you to establish a logical connection between your
terminal and a previously logged-on multiple-access virtual machine. If you cannot loq on for some reason, such as a faulty line connection or
someone else usinq your user identification, the MESSAGE command allows
you to communicate with the system operator or any other logged-on user.
12 IBM VM/370 CP Command Reference for General Users