The following symbols are used to define the co.mand format and
should never be typed when the actual command is entered.
underscore
braces { }
brackets [] ellipsis Uppercase letters and words, and the following symbols, should be
entered as specified in the format box.
asterisk * comma hyphen equal sign =
parentheses ()
period
colon Lowercase letters, words, and symbols that appear in the command
format box represent variables for which specific information should
be substituted. Por example, "hexloc" indicates that a hexadecimal
storage location address is to be entered. Choices are represented in the command format boxes by stacking. A B
C An underscore indicates an assumed default. If an underscored choice
is selected, it need not be specified when the command is entered. The representation 1 C
indicates that either 1,
selected, it need not be
assumed.
B, or C may be selected. However, if B is
specified. Or, if none is entered, B is The use of braces denotes choices, one of which be selected. The representation
{ i }
indicates that you specify either 1, or B, or C.
choices is enclosed by neither brackets or braces,
treated as if enclosed by braces. 42 i!/370 Operator's Guide
If a list of
it is to be
The use of brackets denotes choices, one of which be selected. The representation r , I A I I B I I C I L J indicates that you may enter A, B, or C, or you may omit the field.
In instances where there are nested
lines, the following rule applies;
dependent upon the selection of the
nesting.
[Level 1 [Level 2 [Level 3 ]]]
[filename [filetype [filemode]]]
braces or brackets on the text Nested operand selectibn is
operand of a higher level of Where the highest level of nesting is the operand that is enclosed in
only one pair of brackets and the lowest level of nesting is the
operand that is enclosed by the maximum number of brackets. Thus in
the previous example, the user has the option of selecting a file by
filename only, or filename filetype only or by filename filetype
filemode. The user cannot select filetype alone because filetype is
nested within filename; and, as noted, our rule states: the higher level of nesting .ust be selected in order to select the next level
(lower level) operand. The same is true if the user wants to select
filemode; filename and filetype must also be selected. An ellipsis indicates that the preceding ite. or group of items may be repeated more than once in succession. Exa!!£le The representation
{spoolid1 spoolid2 ••• }
indicates that more than one spoolid may be coded within the braces.
Section 3. CP Commands 43
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