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Mastering Linux Shell Scripting

You're reading from   Mastering Linux Shell Scripting A practical guide to Linux command-line, Bash scripting, and Shell programming

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Product type Paperback
Published in Apr 2018
Publisher
ISBN-13 9781788990554
Length 284 pages
Edition 2nd Edition
Languages
Tools
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Authors (2):
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Mokhtar Ebrahim Mokhtar Ebrahim
Author Profile Icon Mokhtar Ebrahim
Mokhtar Ebrahim
Andrew Mallett Andrew Mallett
Author Profile Icon Andrew Mallett
Andrew Mallett
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Table of Contents (17) Chapters Close

Preface 1. The 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 the Stream Editor 9. Automating Apache Virtual Hosts 10. AWK Fundamentals 11. Regular Expressions 12. Summarizing Logs with AWK 13. A Better lastlog with AWK 14. Using Python as a Bash Scripting Alternative 15. Assessments 16. Other Books You May Enjoy

Using Python as a Bash Scripting Alternative

In the previous chapter, we saw a practical example of using AWK and we saw how to process lastlog output to produce better reports. In this chapter, we will take a look at another scripting alternative for bash. We will talk about Python. Python is another scripting language and the newest that we have looked at so far. Similar to bash, Python is an interpreted language and makes use of the shebang. Although it does not have a shell interface, we can access a console called REPL where we can type Python code to interact with the system. In this chapter, we will cover the following topics:

  • What is Python?
  • Saying Hello World the Python way
  • Pythonic arguments
  • Significant whitespace
  • Reading user input
  • String manipulation
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