Developing Applications for z/OS UNIX

Course Number:  597-JK
Recommended Duration:  3 days

Intended Audience
Programmers experienced with working in an OS/390 or z/OS environment who will be designing and coding applications that are to be run using z/OS UNIX.

Course Overview
Students create and maintain programs in the z/OS UNIX environment and that use callable z/OS UNIX System Services as well as C functions.  There are 14 machine exercises, although the typical student will only work 8 of them.

Objectives
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.

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

Topics

• 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

• Compiling and binding COBOL programs from the shell: cob2

• Compiling and binding PL/I programs from the shell: pli

• Callable z/OS UNIX services (BPX1...)

• Parms and environment variables under the shell

• Make and makefiles