HP-UX Shell Programming

This Hewlett Packard HP-UX Posix Shell Programming training course is designed to give delegates practical experience in developing and writing HP-UX shell scripts. Most of the built-in shell commands are introduced together with the main program control structures. This course is not suitable for C shell programmers.

The delegate will learn and acquire skills as follows:

Writing simple scripts to enhance basic command output
Using the various shell quoting mechanisms appropriately
Manipulating shell variables and user-defined variables in scripts
Implementing conditional execution facilities
Using the shell's built-in loop constructs where appropriate
Writing scripts to trap user interrupts
User defined Functions
Developing menu-driven shell scripts

Who will the Course Benefit?

Programmers, administrators and support personnel who need to understand existing shell scripts, automate procedures and write their own utilities.

The course assumes knowledge of the HP-UX Operating System to the level covered in the HP-UX Introduction course. Some programming experience may also prove advantageous.

Course Objectives

To provide the skills needed to develop and customise shell programs.

Examinations

This HP-UX Shell Programming course, together with the HP-UX Introduction and HP-UX Administration courses, covers some of the topics required for the HP-UX 11i v3 System Administration (HP0-P20) exam.

Before taking any exam, ensure you have the recommended experience. The HP-UX website lists all exam requirements and these are updated regularly.

Exams are not included as part of the course.

Requirements

The HP-UX Shell Programming course assumes knowledge of the HP-UX Operating System to the level covered in the HP-UX Introduction course. Some programming experience may also prove advantageous.

Pre-Requisite Courses

HP-UX Introduction

Follow-On Courses

HP-UX System Administration
Oracle SQL
HP-UX Advanced Shell Programming Tools

Notes:

Course technical content is subject to change without notice.
Course content is structured as sessions, this does not strictly map to course timings. Concepts, content and practicals often span sessions.

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Course Contents - DAY 1

Course Introduction

Administration and course materials
Course structure and agenda
Delegate and trainer introductions

Session 1: HP-UX COMMAND REVIEW

Basic Unix commands
General commands
File and directory handling commands
Filename generation and regular expression characters
I/O Redirection features
Other commands

Session 2: GETTING STARTED

What is a shell script?
Development guidelines
Creating and editing shell scripts
Naming and storing shell scripts
Executing shell scripts
Exercise: Write a simple shell script

Session 3: USING VARIABLES

Environment variables
Local variables
Assigning values to variables
Assessing variable values
Using quotes
Delimiting variable names
Echo control sequences
Exercise: Add variables to a script

Session 4: INTEGER ARITHMETIC

Using the expr command
Using the (( )) notation
Exercise: Add integer arithmetic to a shell script

Session 5: HANDLING RUN TIME DATA

The read command
Command line arguments
Exercise: Writing a generic shell script
Exercise: Writing an interactive shell script

Session 6: CONDITIONAL EXECUTION

The if statement
The test command
Exercise: Adding validation to previous scripts

Session 7: ADDITIONAL KORN, BASH & POSIX SYNTAX

Other test notations
Default and substitute variables
Exit status codes
Exercise

HP-UX Shell Programming Training Course

Course Contents - DAY 2

Session 8: LOOP CONSTRUCTS

The while loop
The until loop
The for loop
The while true and until false loops
Loop control commands
Exercise: Enhancing the previously written scripts
Exercise: Writing a script to copy files using a 'for' loop
Exercise: Writing a script to generate numbers with the 'while' loop

Session 9: MULTI-BRANCH DECISIONS

The case statement
Menu driven applications
Exercise: Developing and writing a menu system

Session 10: FUNCTIONS

What is a function?
Syntax
Examples
Exercise: Add a function to a script

Session 11: INTERRUPT HANDLING

Interrupt signals
Trapping interrupts
Exercise: Adding traps to the menu script

Session 12: ADDITIONAL FEATURES AND FACILITIES

The exec commands
The includes notation
More about loops
Arrays
Here Documents
Exercise: Create a here script

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