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z/OS MVS JCL Reference
Use the & (AND) and | (OR) logical operators in a complex relational-expression to indicate that the Boolean result of two or more relational-expressions is to be evaluated.
You must precede and follow the & (AND) and | (OR) operators with at least one blank.
The & (AND) operator indicates that all of the specified expressions must be true. For example, to test that a return code is both greater than 8 and less than 24 (in the range 9 through 23), code:
The | (OR) operator specifies that only one of the expressions need be true. For example, to test that a return code is either equal to 8, equal to 10, or greater than 24, code:
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