HP 3000 Manuals

Introduction to MPE XL for MPE V Programmers Migration Guide

SETVAR, SHOWVAR, and DELETEVAR Commands 
(new) 

The DELETEVAR, SETVAR, and SHOWVAR commands are used to delete, to add or
alter, and to show variables from the job or session Variable Table.

MPE V/E has only one type of variables for interprocess communication:
JCWs (Job Control Words).  On MPE XL, you can use variables as well for
interprocess communication between processes in the same job or session.

These new commands are also described in Chapter 13 of this volume, and
in the MPE XL Commands Reference Manual (32650-90003) .

MPE/iX 5.0 Documentation