Control

IEHPROGM is controlled by job and utility control statements.

You can use job control statements to perform these tasks:

Process or load the program.
Define the control data set.
Define volumes or devices to be used during the course of program execution.
Prevent data sets from being deleted inadvertently.
Prevent volumes from being demounted before they have been completely processed by the program.
Suppress the listing of utility control statements.

Utility control statements are used to control the functions of the program and to define those data sets or volumes that are to be modified.