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Linux Shell Programming - A 2-day course

* Open Public Course* Closed In-House Course

Linux Shell Programming Course Overview

This course is designed to give delegates practical experience in developing and writing LINUX 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.

Course Objectives

The delegates will practise:

Suitable for

Prerequisites

Publicly scheduled dates, locations, and prices

Birmingham — £795 (+VAT)

  • 24–25 May 2012
  • 9–10 Aug 2012
  • 8–9 Nov 2012

Bristol — £795 (+VAT)

  • 31 May–1 Jun 2012
  • 26–27 Jul 2012
  • 27–28 Sep 2012
  • 29–30 Nov 2012

Edinburgh — £795 (+VAT)

  • 14–15 Jun 2012
  • 6–7 Sep 2012
  • 22–23 Nov 2012

Leeds — £795 (+VAT)

  • 26–27 Jul 2012
  • 27–28 Sep 2012
  • 29–30 Nov 2012

London — £795 (+VAT)

  • 17–18 May 2012
  • 14–15 Jun 2012
  • 25–26 Jun 2012
  • 12–13 Jul 2012
  • 2–3 Aug 2012
  • 13–14 Aug 2012
  • 23–24 Aug 2012
  • 20–21 Sep 2012
  • 24–25 Sep 2012
  • 18–19 Oct 2012
  • 15–16 Nov 2012
  • 19–20 Nov 2012
  • 13–14 Dec 2012

Manchester — £795 (+VAT)

  • 31 May–1 Jun 2012
  • 2–3 Jul 2012
  • 20–21 Sep 2012
  • 15–16 Nov 2012

Course Contents:

Course Introduction

  • Administration and Course Materials
  • Course Structure and Agenda
  • Delegate and Trainer Introductions

Linux Command Review

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

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

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

Integer Arithmetic

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

Handling Run Time Data

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

Condition Execution

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

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 guess-the-number game

Multi-Branch Decisions

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

Functions

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

Interrupt Handling

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

Additional Features and Facilities

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