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The Ultimate Linux Shell Scripting Guide

You're reading from   The Ultimate Linux Shell Scripting Guide Automate, Optimize, and Empower tasks with Linux Shell Scripting

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Product type Paperback
Published in Oct 2024
Publisher Packt
ISBN-13 9781835463574
Length 696 pages
Edition 1st Edition
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Author (1):
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Donald A. Tevault Donald A. Tevault
Author Profile Icon Donald A. Tevault
Donald A. Tevault
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Toc

Table of Contents (26) Chapters Close

Preface 1. Getting Started with the Shell FREE CHAPTER 2. Interpreting Commands 3. Understanding Variables and Pipelines 4. Understanding Input/Output Redirection 5. Customizing the Environment 6. Text-Stream Filters – Part 1 7. Text Stream Filters – Part 2 8. Basic Shell Script Construction 9. Filtering Text with grep, sed, and Regular Expressions 10. Understanding Functions 11. Performing Mathematical Operations 12. Automating Scripts with here Documents and expect 13. Scripting with ImageMagick 14. Using awk – Part 1 15. Using awk – Part 2 16. Creating User Interfaces with yad, dialog, and xdialog 17. Using Shell Script Options with getops 18. Shell Scripting for Security Professionals 19. Shell Script Portability 20. Shell Script Security 21. Debugging Shell Scripts 22. Introduction to Z Shell Scripting 23. Using PowerShell on Linux 24. Other Books You May Enjoy
25. Index

Questions

  1. Which two of the following methods would you use to create a function? (Choose two.)
    1. function function_name()
    2. function_name()
    3. declare -f function_name
    4. declare -F function_name
  2. You want to create a function that will pass the value of a variable back to the main program. Which of the following should you use to do that?
    1. A global variable
    2. A local variable
    3. A return statement
    4. A continue statement
  3. You want to create a function that any user can use in his or her own scripts. What is the best way to do that?
    1. Create a function library file in a central location, and make it executable.
    2. Add the new functions to the /etc/bashrc file.
    3. Create a function library file in a central location, but don’t make it executable.
    4. D. Create a function library file in your own home directory.
  4. Which...
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