Course Description

Shell Script Programming in z/OS UNIX

This course: course objectives; course outline; UNIX curriculum; z/OS curriculum; Topic list; Course list; Home page

Benefits

Students who complete this course will be able to use many of the advanced capabilities of UNIX System Services running under z/OS. This is an intense, practical encounter with the UNIX world as implemented on the z/OS platform, and a natural follow on to the course U510: "Introduction to z/OS UNIX".

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, especially Web-based applications.

Prerequisites

Fundamental knowledge of z/OS UNIX system services, such as might be obtained from attending course U510: "Introduction to z/OS UNIX".

Related IBM Materials

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

SA22-7801 - z/OS UNIX User's Guide
SA22-7802 - z/OS UNIX Command Reference

• Introduction to scripting concepts
• Running UNIX applications: shells, processes, and such
• Regular expressions
• grep, egrep, fgrep commands
• The shell line editor: ed
• The find command
• find and grep together
• Introduction to shell scripts
• read, clear, getconf commands
• Logic in scripts: if, test, pathchk
• Looping in scripts: [[ ]], until, while, nested loops, break, continue
• Variable manipulations: let, expr, typeset, integer
• Parameters in shell scripts: for; special parameters; array variables
• More script logic: select, case, getopts
• Functions (in scripts and stand alone)
• Shell flags and options; set and unset
• z/OS shell processing; sh, exec, whence, type, eval, xargs
• sed: the Stream Editor
• Using sed scripts to convert plain text to HTML
• Using sed scripts to create HTML files from flat data files
• Sorts: tsort, sort
• File compares and more
• Running shell scripts in batch: BPXBATCH, BPXBATSL
• The OSHELL command

Exercises

There are 19 hands-on exercises, as well as a number of structured Computer Experiments.