SYSEXV Utility

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# SYSEXV Utility

The utility SYSEXV utility provides example programs that demonstrate the use of Natural features introduced in the current or a previous version of Natural.

All example programs are available as source objects. You obtain detailed functionality descriptions when you execute the programs.

This document covers the following topics:

- Executing Example Programs

- Viewing Features of Previous Versions

- Terminating an Example Program or the SYSEXV Utility

## Executing Example Programs

To execute an example program

1. Enter the following system command:

       SYSEXV

   A SYSEXV menu opens with a list of recent Natural version.

2. Select the required version from the menu.

   A list of functions and corresponding programs is displayed.

3. Select a function/program by entering any character in the input field next to the required list item.

## Viewing Features of Previous Versions

To list features of previous Natural versions

1. From the SYSEXV menu, enter the following command:

       LIST A-README

   Or:
   Log on to the SYSEXV library and enter the following command:

       LIST A-README

   The source of the text object `A-README` is displayed.

   `A-README` lists and comments example programs for features of previous Natural versions.

   Note
   Do not modify the text object `A-README`.

2. Choose a program and execute it.

## Terminating an Example Program or the SYSEXV Utility

To terminate an example program

- Press PF3 (Exit).

To terminate the SYSEXV utility

- In the SYSEXV utility menu, press PF3 or PF12, or

  enter a period (.) in any line, or

  enter `EXIT` or a period (.) in the command line.

  Or:
  In an example program, press PF12 (Canc).

### On this page

- Executing Example Programs
- Viewing Features of Previous Versions
- Terminating an Example Program or the SYSEXV Utility