IF
If the specified expression evaluates to TRUE, then the following statement is executed. If the expression evaluates to FALSE, then the following statement is skipped.
ON
ON is a global condition function. During the execution of a JOB which includes ON statements, the test in the ON statement is performed after every step.
OPTION
Changes job control options for the duration of the job.
PAUSE
Halts execution and waits for a reply from the operator.
PROC
The first statement in a cataloged procedure.
PWR
Power commands are not supported within the JCL stream.
RESET
Resets temporary LU assignments back to defaults.