Unix Shell Scripting Advanced

Description:-

The Unix Shell Scripting Advanced tutorial is recommended for the more advanced user who has a working knowledge of basic UNIX Shell operation. This course describes how to create programs using the syntax and features of the UNIX Shell, focusing on the most popular-- the Bourne Shell. In this eight hour tutorial, author Mark Virtue will demonstrate techniques that will be compatible with all brands of UNIX, including LINUX.

Introduction

About this Course
Course Structure
What is the UNIX Shell?
Which Shell?
What is a Shell Script?

Your First Shell Script

A Basic Script
The echo Command
The read Command
Shell Basics Revisited
Special Characters
Comments
Chapter Exercises
Exercise Solutions

Running a Shell Script

Running a Script on the Command-line
Running a Script from within vi
Your PATH and bin
Script Interpreters
CGI Scripts

Shell Programming Features

Shell Variables
Environment Variables
The Trouble with Quotes
Grouping Commands
Line Control
Chapter Exercises
Exercise Solutions
Introducing the Course Project
Course Project Solution

Conditional Code

True and False
Conditional Command Execution
The if Statement
The else Clause
The elif Clause
Using test
The case Statement
Chapter Exercises
Exercise Solutions

Loops

The while Loop
break and continue
Numerical Calculations
The for Loop
Chapter Exercises
Exercise Solutions

Text Processing

About Filters
grep
Regular Expressions
sort
sed
awk
Chapter Exercises
Exercise Solutions

Functions

Program Structure
Defining and Calling a Function
Function Parameters
Function Return Values
Functions in Other Files
Case Study: The yesno Function
Chapter Exercises
Exercise Solutions

Command-line Parameters

Using Command-line Parameters
Using shift
Using set --
Using IFS
Usage Messages
Chapter Exercises
Exercise Solutions

Advanced Scripting

Debugging
Default Values for Variables
Temporary Files
Preventing Abnormal Termination
Chapter Exercises
Exercise Solutions
The End

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