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Introduction to CMS Pipelines

Overview
This 2 day course is designed to introduce the delegates to the use of CMS Pipelines. With more recent versions of VM these have replaced EXECIO as the standard method of I/O when writing REXX programs. This course gives students an introduction to CMS Pipelines and includes many hands on exercises and can be given to existing REXX programmers or taught as part of the Introduction to REXX class.

Pre-requisites
Experience of coding in REXX or completion of the introductory REXX class.

Audience
Staff who would like to automate repetitive tasks on VM and wish to read and write files in CMS.

Student Numbers
The maximum recommended student to instructor ratio is 12:1

Objectives
By the end of the course, the delegates will be able, with the aid of course notes to:

         Code REXX Execs using CMS Pipelines.

         Identify the correct stage driver to use for processing information.

         Use CMS Pipelines from the CMS Command line

         Create new files and append to existing files.

Course Outline

Introduction

Overview of the Course

CMS Pipelines

Device Drives
Return Codes

Reading data into Pipelines

Reading in Files
Reading Variables
CP Commands
CMS Commands
Literals
Stems
Reader

Passing data from Pipelines

Writing New Files
Appending to Files
Writing Variables
Console
Stems
Hole

Filter Stages in Pipelines

ALL
APPEND
CHANGE
CHOP
COUNT
DROP
DUPLICATE
FIND
FRLABEL
JOIN
LOCATE
NFIND
NLOCATE
PAD
PICK
SORT
SPECS
SPLIT
STRIP
TAKE
TOLABEL
UNIQUE
XLATE

Multistream Pipelines

Using Labels
FANOUT
FANINANY
FANIN
WRITING STAGES

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