You're reading from Mastering Linux Shell Scripting Master the complexities of Bash shell scripting and unlock the power of shell for your enterprise

Product type Paperback

Published in Dec 2015

Publisher

ISBN-13 9781784396978

Length 198 pages

Edition 1st Edition

Tools

Linux

Concepts

Shell Scripting

Author (1):

Andrew Mallett

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Table of Contents (16) Chapters

Preface

1. What and Why of Scripting with Bash

2. Creating Interactive Scripts FREE CHAPTER

3. Conditions Attached

4. Creating Code Snippets

5. Alternative Syntax

6. Iterating with Loops

7. Creating Building Blocks with Functions

8. Introducing sed

9. Automating Apache Virtual Hosts

10. Awk Fundamentals

11. Summarizing Logs with Awk

12. A Better lastlog with Awk

13. Using Perl as a Bash Scripting Alternative

14. Using Python as a Bash Scripting Alternative

Index

Chapter 2. Creating Interactive Scripts

In Chapter 1, What and Why of Scripting with Bash, of this book we learned how to create a script and use some of its basics elements. These include optional parameters that we can pass through to the script when it is executed. In this chapter, we will extend this by using the read shell built-in command to allow for interactive scripts. Interactive scripts are scripts that prompt for information during the script execution. In doing so, we will cover the following topics:

Using echo with options
Basic script using read
Adding comments
Enhancing read scripts with prompts
Limiting the number of entered characters
Control the visibility of the entered text
Simple scripts to enforce our learning

Tech Concepts

Programming languages

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Mastering Linux Shell Scripting

Published in: Dec 2015

Publisher:

ISBN-13: 9781784396978

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Authors (1)

Andrew Mallett

Andrew Mallett has been working professionally with Linux since 1999; much of that time as an Instructor. He now runs his consultancy where he works with and writes about Linux. He is onto his 5th book with Packt and has 65,000 subscribers on his YouTube channel: theurbanpenguin. You can be assured that he masters Linux and is passionate to share his knowledge with you.

See other products by Andrew Mallett