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Mastering Linux Shell Scripting

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

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Product type Paperback
Published in Dec 2015
Publisher
ISBN-13 9781784396978
Length 198 pages
Edition 1st Edition
Tools
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Author (1):
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Andrew Mallett Andrew Mallett
Author Profile Icon Andrew Mallett
Andrew Mallett
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Table of Contents (16) Chapters Close

Preface 1. What and Why of Scripting with Bash FREE CHAPTER 2. Creating Interactive Scripts 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

Summary

We have had three Chapters where we have used awk. Starting with some basic usage statements in Chapter 10, Awk Fundamentals where we became comfortable. Within Chapter 11, Summarizing Logs with Awk and this chapter we started building our bespoke applications.

Specifically, in this chapter we saw how we could create reports from the output of standard commands, such as lastlog. We saw that we could negate ranges and additionally make use of the OR statement. We then built the application that will allow us to query XML data.

For the next two chapters, we will move away from the shell scripts and look at scripts using perl and Python so we can compare the scripting languages and make appropriate choices.

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