Contact Us

« Important Announcement » Contact Us 877-206-0106 | USA Flag

Thank you for your interest in LearnQuest.

Your request is being processed and LearnQuest or a LearnQuest-Authorized Training Provider will be in touch with you shortly.


Thank you for your interest in Private Training.

We look forward to helping you develop the perfect training solution to help you meet your company's goals.

For immediate assistance, speak with one of our representatives using the chat module below. Otherwise, LearnQuest or a LearnQuest-Authorized Training Provider will be in touch with you shortly.


Thank you for your interest in LearnQuest!

Now, you will be able to stay up-to-date on our latest course offerings, promotions, and training discounts. Watch your inbox for upcoming special offers.


Date: xxx

Location: xxx

Time: xxx

Price: xxx

Please take a moment to fill out this form. We will get back to you as soon as possible.

All fields marked with an asterisk (*) are mandatory.

REXX Scripts in the z/OS Environment

1,755 USD
3 Days
Classroom Training, Online Training
IBM Business Partner

AWS Training Pass

Take advantage of flexible training options with the AWS Training Pass and get Authorized AWS Training for a full year.

Learn More

Prices reflect a 22.5% discount for IBM employees.
Prices reflect a 24% discount for Kyndryl employees.
Prices reflect the Accenture employee discount.
Prices shown are the special AWS Partner Prices.
Prices reflect the Capgemini employee discount.
Prices reflect the UPS employee discount.
Prices reflect the ??democompanyname?? employee discount.
GSA Private/Onsite Price: ??gsa-private-price??
For GSA pricing, please go to GSA Advantage.

Class Schedule

Delivery Formats

Sort results

Filter Classes

Guaranteed to Run





  • Date: 29-Jan-2024 to 31-Jan-2024
    Time: 9AM - 5PM US Eastern
    Location: Virtual
    Language: English
    Delivered by: LearnQuest
    Price: 1,755 USD
  • Date: 26-Feb-2024 to 28-Feb-2024
    Time: 9AM - 5PM US Eastern
    Location: Virtual
    Language: English
    Delivered by: LearnQuest
    Price: 1,755 USD
View Global Schedule

Course Description


This REXX course is for those wanting to learn and master REXX in the z/OS environment. Students will study the REXX interpreter as a basis for understanding techniques for writing efficient and readable REXX code. Templates, tracing, and interpreting are reviewed as well as Generic built-in functions. During workshops, students will test REXX in a variety of commonplace application scenarios. Students will learn how to create their own subroutines and functions. Terminal output will be trapped from z/OS and TSO/E. Techniques will be presented to manage the program stack, along with file I/O. Familiarity with TSO/E, ISPF, and ISPF Editor is required. Experience with JCL is beneficial but not mandatory.


This course is one step in the following Learning Journey:

  1. Mainframe Application Developer


Upon completion of the REXX course, students will be able to:
  • Write efficient, readable REXX code
  • Choose between various REXX templates for parsing
  • Exploit INTERPRET and interactive debug TRACE
  • Create their own built in REXX functions
  • Trap console output from MVS and TSO/E
  • Effectively manage the program stack
  • Read, write, and update MVS files
  • Submit MVS REXX execs to MVS batch processor






  • Why REXX?
    • History, Advantages, Disadvantages
    • What is REXX like?
    • What Can REXX do?
    • REXX on TSO
    • Comparison with CLISTs
    • Execution Differences: CLIST and REXX
    • REXX Syntax
    • Setting up to Execute
  • REXX Components
    • REXX Verbs and Keywords
    • Assignment
    • Command
    • Label
    • Function
    • The Literal
    • Hexadecimal String
    • REXX Variables
    • The Basic Subset
  • Concatenation and Logic
    • Concatenating Data IF – The Conditional Comparison Operators
    • The DO END Construction
    • Fuzzing: Not Quite EqualBoolean Operators
  • String Manipulation With Parse
    • Parse
    • Function of Parsing
    • Parse Origin
    • Parsing in a Main Program
    • ARG and DATASET Names
    • Converting CLIST PROC to REXX ARG
    • Parsing Arguments in a Function
    • Subroutine
    • Parsing From The Stack and Terminal
    • Parsing From Terminal Only
    • Parsing a Variable
    • Parsing a Literal Value
    • Parse Source
  • Debugging
    • What You Can Do During Interactive
    • Debug
    • Interactive Debug Codes
    • Debugging
    • Tracing Instructions
    • Trapping Errors
    • The Trap That Terminates
    • The Trap That Continues
    • Trap Continues with Chosen Name
    • Condition
    • Trapping TSO/ISPF Command
    • Trapping Failure
    • Failure Trap That Continues
    • Trapping Novalue
    • Trapping PA1 or ATTN
    • Trapping With A Choice
    • Trap Ingredients
    • The Infamous “GO TO”
  • Arithmetic
    • Math
    • Precision
    • Rounding
  • Select CASE Structure
    • Select: CASE Structure
    • Select Example
    • Select and NOP
    • Select and OTHERWISE
  • Passing Commands to the Environment
    • General
    • When REXX Will Pass Command to the Environment
    • How REXX Decides
    • What Environments Can REXX Talk To?
    • When Can REXX Work with TSO, ISPF, ISPF Editor?
    • What is the Normal Default Environment?
    • Passing One Command to an Environment
    • Is an Environment Available? Talking to ISPF
    • Using Variable Services
    • File Tailoring Services
    • File Tailoring Example
    • File Tailoring Panel
    • File Tailoring
    • Edit Macro
    • Edit Macro Environment and Parms
    • Edit Macro with Multiple Parms
    • Edit Macros with Variables
  • Built-in FUNCTIONS
    • Using RESULT
    • Using Null with Functions
    • DATATYPE Function
    • LENGTH Function
    • POS Function
    • QUEUED Function
    • SUBSTR Function
    • X2D and D2X Functions
    • Functions Found Only on TSO
    • LISTDSI Function
    • LISTDSI Example
    • MSG Function
    • OUTTRAP Function
    • OUTTRAP Example
    • SYSDSN Function
    • User Written Functions/Subroutines
    • General Format of Internal Function/Subroutine
    • External Functions/Subroutines
  • Looping
    • DO WHILE
    • DO UNTIL
    • Stepping with DO
    • Looping N Times
    • DO n TIMES
    • LEAVE
  • REXX – The Stack
    • What is the Stack?
    • How Do You Put Thing Into the Stack?
    • How Do You Take Things From the Stack?
    • Description of the Stack
    • Data in the Stack
    • Terminal Input
    • QUEUE and EXECIO
    • PUSH and the Stack
    • Removing Data from the Stack
    • Counting Lines in the Stack
    • Bypassing the StackBottom of the Stack
    • Sending the Stack to TSO
    • Isolating the Stack
    • Functions Used with the Stack
    • Clearing the Stack
    • Passing Information to Another Program
  • Compound Variables
    • What is a Compound Variable?
    • Compound Variable Example
    • Compound Variables and Subscripts
    • What are Compound Variables Used For?
    • Stepping Through the Extensions
    • Loading and Unloading an Array
    • Changing the Stem
    • Using Two or More Extensions
    • EXECIO
    • EXECIO Format
    • What Do You Read Into?
    • Where Do You Write From?
    • EXECIO Syntax
    • Reading a Whole File into the Stack
    • Reading One Record at a Time
    • Reading One Record
    • Reading a Whole File into an Array
    • Additional Option for Reading
    • EXECIO Writing
    • Writing from the Stack Example
    • Writing from the Stack Explanation
    • Copy a File Using the Stack
    • Writing from an Array
    • The INTERPRET Instruction
    • Converting from CLISTS
    • Codes Displayed During Interactive Debug
    • Tracing Instruction You Can Put in Your Programs
  • 2023 Top 20 Training Industry Company - IT Training

    Need Help?

    Call us toll free at 877-206-0106 or e-mail us at

    Personalized Solutions

    Need a personalized solution for your Training? Contact us, and one of our training advisors will help you find the best solution.

    Contact Us

    Need Help?

    Do you have a question about the courses, instruction, or materials covered? Do you need help finding which course is best for you? We are here to help!

    Talk to us

    Stretch Your 2023 Training Budget into 2024

    Maximize your training investment with LearnPass' flexible options.

    Learn More


    Self-Paced Training Info

    Learn at your own pace with anytime, anywhere training

    • Same in-demand topics as instructor-led public and private classes.
    • Standalone learning or supplemental reinforcement.
    • e-Learning content varies by course and technology.
    • View the Self-Paced version of this outline and what is included in the SPVC course.
    • Learn more about e-Learning

    Course Added To Shopping Cart







    Self-Paced Training Terms & Conditions


    Sorry, there are no classes that meet your criteria.

    Please contact us to schedule a class.

    STOP! Before You Leave

    Save 0% on this course!

    Take advantage of our online-only offer & save 0% on any course !

    Promo Code skip0 will be applied to your registration

    Nothing yet
    here's the message from the cart

    To view the cart, you can click "View Cart" on the right side of the heading on each page
    Add to cart clicker.

    Purchase Information

    ??elearning-coursenumber?? ??coursename??
    View Cart

    Need more Information?

    Speak with our training specialists to continue your learning journey.


    Delivery Formats


    By submitting this form, I agree to LearnQuest's Terms and Conditions

    heres the new schedule
    This website uses third-party profiling cookies to provide services in line with the preferences you reveal while browsing the Website. By continuing to browse this Website, you consent to the use of these cookies. If you wish to object such processing, please read the instructions described in our Privacy Policy.
    Your use of this LearnQuest site affirms your consent to our use of session and persistent cookies to track how you use our website.