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Learn Linux Shell Scripting – Fundamentals of Bash 4.4

You're reading from   Learn Linux Shell Scripting ‚àö¬¢‚Äö√ᬮ‚Äö√Ñ√∫ Fundamentals of Bash 4.4 A comprehensive guide to automating administrative tasks with the Bash shell

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Product type Paperback
Published in Dec 2018
Publisher Packt
ISBN-13 9781788995597
Length 452 pages
Edition 1st Edition
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Author (1):
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Sebastiaan Tammer Sebastiaan Tammer
Author Profile Icon Sebastiaan Tammer
Sebastiaan Tammer
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Table of Contents (20) Chapters Close

Preface 1. Introduction 2. Setting Up Your Local Environment FREE CHAPTER 3. Choosing the Right Tools 4. The Linux Filesystem 5. Understanding the Linux Permissions Scheme 6. File Manipulation 7. Hello World! 8. Variables and User Input 9. Error Checking and Handling 10. Regular Expressions 11. Conditional Testing and Scripting Loops 12. Using Pipes and Redirection in Scripts 13. Functions 14. Scheduling and Logging 15. Parsing Bash Script Arguments with getopts 16. Bash Parameter Substitution and Expansion 17. Tips and Tricks with Cheat Sheet 18. Assessments 19. Other Books You May Enjoy

Common file operations

So far, we have mainly introduced commands related to navigation on the Linux filesystem. In earlier chapters, we already saw that we can use mkdir and touch to create directories and empty files, respectively. If we want to give a file some meaningful (text) content, we use vim or nano. However, we have not yet talked about removing files or directories, or copying, renaming, or creating shortcuts. Let's start with copying files.

Copying

In essence, copying a file on Linux is really simple: use the cp command, followed by the filename-to-be-copied to the filename-to-copy-to. It looks something like this:

reader@ubuntu:~$ ls -l
total 12
-rw-rw-r-- 1 reader reader 69 Jul 14 13:18 nanofile.txt...
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