Course Icon HP-UX Training

HP-UX Shell Programming

0800 1337 401

Overview

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.

Objectives

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

Outline

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 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: CONDITION EXECUTION

  • The if statement
  • The test command
  • Other test notations
  • Default and substitute variables
  • Exit status codes
  • Exercise: Adding validation to previous scripts

Course Contents - DAY 2

Session 7: 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 8: MULTI-BRANCH DECISIONS

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

Session 9: FUNCTIONS

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

Session 10: INTERRUPT HANDLING

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

Session 11: 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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