You can use the PROC statement to assign parameters to variables by position. First, type a number on the PROC statement telling how many positional parameters to expect (type 0 if none). Then specify the variables that you want to use. For example, in the following PROC statement, the number 1 tells the CLIST to assign the first parameter it receives to the variable NAME.

PROC 1 NAME

Thus, if you invoke the CLIST with the parameter JOE:

EX clistname 'JOE'

the variable NAME contains the value JOE.

Suppose you wanted the PROC statement to assign a second parameter to the variable ADDRESS. You can write the statement as follows:

PROC 2 NAME ADDRESS

The invoker must know the correct order in which to pass positional parameters, and must pass as many as you specify by number on the PROC statement. If the invoker doesn't pass a positional parameter as expected, the CLIST prompts for it. Positional parameters can have up to 252 characters (A-Z, 0-9, #, $, @, _).