Introduction - If you have any usage issues, please Google them yourself
This book describes the job control tasks needed to enter jobs into the operating
system, control the system’s processing of jobs, and request the resources needed
to run jobs. To perform the tasks, programmers code job control statements. This
book describes how to use these statements, which consist of:
v Job control language (JCL) statements
v Job entry subsystem 2 (JES2) control statements
v Job entry subsystem 3 (JES3) control statements