U520 Developing Applications for z/OS UNIX

Course Code: U-520
Recommended Duration: 3 Days

Benefits

Students who complete this course will be able to create and maintain programs written to run in the z/OS UNIX environment and that use callable z/OS UNIX System Services as well as C functions. They will also be able to construct and use makefiles to support their applications.

Audience

Programmers experienced with working in a z/OS environment who will be designing and coding applications that are to be run using z/OS UNIX.

Prerequisites

Fundamental knowledge of z/OS UNIX shell scripting such as might be obtained from attending course U515: "Shell scripting in z/OS UNIX", and familiarity with at least one of these programming languages: COBOL, PL/I, C, LE-compliant Assembler.

Related IBM Materials

This course is drawn from these and other IBM manuals; access to these publications in the classroom is desirable but not required:

SA77-7803 - z/OS UNIX System Services Programming: Assembler Callable Services
SA22-7802 - z/OS UNIX Command Reference

Major Topics Include

Introduction to z/OS UNIX applications
File access in z/OS UNIX application
Using QSAM to process HFS files
Interacting with the user at the OMVS terminal
Basic printf() and scanf() functions
Calling C functions from COBOL programs
Calling C functions from PL/I programs
Calling C functions from Assembler programs
Compiling and binding C programs from the shell: c89
Assembling and binding Assembler programs from the shell: c89
Assembling using the as command
Compiling and binding COBOL programs from the shell: cob2
Compiling and binding PL/I programs from the shell: pli
Binding programs using the ld command
Callable z/OS UNIX services (BPX1...)
Callable LE services CEE3PR2, CEEENV, CEE3INF
Parms and environment variables under the shell
Make and makefiles

Exercises

There are 16 machine exercises, although the typical student will only work 8 of them.

Course Description

Developing Applications for z/OS UNIX