Unix Shell Scripting Advanced Tutorial

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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

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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