6 V8/310 Operator's Guide

Section 2. Initiating VM/370 Operation Console Input Procedures CP and CMS commands are never aore than eight characters long and can be
truncated to the m1n1mum size indicated in the co.mand foraat description. The operands, if any, follow the ceamand on the same input
data line. Bost CP and CMS commands may not extend beyond one line except on the 3270. Generally, the operands are positional, but some commands have keywords to assist in the translation of the command line. One or aore blanks must separate the command fre. any operands (except for some EDIT subcommands). CftS indicates successful co.mand processing with the CBS ready message. Error messages occur for erroneous operands. CP does not
recognize CKS comaands. However, a CBS user can issue CP coaaands without leaving the CKS environment. Although net required, CP commands entered while in the CKS environment should be prefixed with "CpR or fttcP" to decrease YK/370 table and disk search tiae. CP then handles
the command and passes control back to CBS. If the CBS user wants to
enter CP mode, he can do so by keying in CP er tcp with no operands
(that is, no CP co •• ands) or with an attention interruption. Por details, refer to "Attention Handling" in the !AlJ70 2.uide • If a user requires com.unication with CP before responding to
specific error messages issued by soae virtual machine operating syste.s
i he should enter CP mode by keying in tcp with one or aore CP coamand lines separated by a logical line end character, or by
signalling attention; then perform the necessary console functions. When returning to the virtual machine environment, the virtual machine
read will have been canceled by a unit exceFtion, and the virtual
operating system noraally responds by reissuing the read. The user can
then enter the required virtual machine response. You, as the '!/370 system operator, are like other system users, but
with some important differences: • You are allowed to perform certain console functions that the normal user is not. • Your terainal normally stays in CP mode and is usually ready to
receive messages from the V!/370 system and other users. Unless you are using a 3270 terminal, before you can type a co •• and,
you must press the REQUEST key (or its equivalent) on the designated V!/370 system console. VK/370 responds with the tiae, and sets up to
read data from the console keyboard. You can then enter CP co.mands
into the system. You can enter all CP commands in lowercase or uppercase, or a aixture of both. All system responses are prefixed with the cleck time at which
you entered the command from the primary console. Pull descriptions of CP commands with a class of 1 through F are in "Section 3. CP Commands." Enter commands into the VK/370 system console by pressing the
end-of-line function key to terminate the command line. To cancel a
.iskeyed or inappropriate V!/370 command that JOu partially or totally
entered into the system, enter the designated logical line delete Section 2. Initiating VK/370 Operation 7