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The Subcommand Interface to EXECs and CLISTs

Introduction

The SUBCOM feature provides an interface between the SAS/C library and the command languages of CMS and TSO (REXX or EXEC2 and CLIST). It can also be used as an interface to REXX for programs running under the UNIX System Services (USS) shell. The interface allows a program to accept input (traditionally subcommands) from a running EXEC or CLIST or to begin executing a new EXEC or CLIST. The SUBCOM interface is implemented through a set of nine functions. This discussion of the SUBCOM feature provides an introduction and overview of the SUBCOM interface followed by descriptions and examples of each of the functions involved.

This chapter is intended for systems programmers and assumes an understanding of either the CMS or TSO command language as well as the concepts of EXEC processing.


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