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Linux Shell Scripting Bootcamp

You're reading from Linux Shell Scripting Bootcamp The fastest way to learn Linux shell scripting

Product type Paperback

Published in Jul 2017

Publisher Packt

ISBN-13 9781787281103

Length 208 pages

Edition 1st Edition

Tools

Linux

Concepts

Shell Scripting

Author (1):

James K Lewis

View More author details

Table of Contents (19) Chapters

Linux Shell Scripting Bootcamp

Credits

About the Author

Acknowledgement

About the Reviewer

www.PacktPub.com

Customer Feedback

Preface

1. Getting Started with Shell Scripting FREE CHAPTER

2. Working with Variables

3. Using Loops and the sleep Command

4. Creating and Calling Subroutines

5. Creating Interactive Scripts

6. Automating Tasks with Scripts

7. Working with Files

8. Working with wget and curl

9. Debugging Scripts

10. Scripting Best Practices

Index

Chapter 9. Debugging Scripts

This chapter shows how to debug Bash shell scripts.

Programming in any language, be it C, Java, FORTRAN, COBOL*, or Bash can be a lot of fun. However, what is often not fun is when something goes wrong, and when it takes an inordinate amount of time to find the problem and then solve it. This chapter will attempt to show the reader how to avoid some of the more common syntax and logic errors, and also how to find them when they occur.

*COBOL: Okay, I have to say that programming in COBOL was never fun!

The topics covered are in the chapter are:

How to prevent some common syntax and logic errors.
The shell debugging commands such as set -x and set -v.
The other ways to set up debugging.
How redirection can be used to debug in real time.

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Authors (1)

James K Lewis

James K Lewis

James Kent Lewis has been in the computer industry for over 35 years. He started out writing BASIC programs in high school and used punch cards in college for his Pascal, Fortran, COBOL, and assembly language classes. He himself learned the C programming language by writing various utilities, including a fully-functional text editor, which he uses everyday. He started out using DOS and AIX, and then OS/2. Linux is now his operating system of choice. Jim has worked in the past for several companies, including IBM, Texas Instruments, Tandem, Raytheon, Hewlett-Packard, and others. Most of these positions dealt with low-level device drivers and operating system internals. In his spare time he likes to create video games in Java.He has written articles for IBM Developer Works and has one patent.

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