28 Chapter 2
Command Definitions A-B
Commands and Parameters
Positional Parameters
The meaning of a positional parameter depends upon its position (location) in the
parameter list. In the syntax diagrams for each command in this chapter, positional
parameters are separated from each other by a comma (,). If you omit a positional
parameter from the list, you must provide the comma placeholder that would normally
precede that parameter. In the following example, the subparameters of the REC
parameter of the BUILD command can be treated as positional parameters:
BUILD filename;REC=128,1,F,ASCII
If you choose to use the system-defined default value F, you need not specify it, but you
must hold the position with a comma:
BUILD filename;REC=128,1,,ASCII
Keyword Parameters
A keyword parameter denotes the meaning or value of a given parameter. In the syntax
diagrams for each command in this chapter, keyword parameters appear in uppercase
(CAPITAL) letters (although you may enter them in either uppercase or lowercase) and are
preceded by a semicolon (;). In the following example, REC is a keyword parameter:
BUILD filename;REC=128,1,F,ASCII
Refer to the section "Combining Positional/Keyword Parameters," below, for additional
information.