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Linux shell scripting bootcamp: explore the possibilities of the shell in a simple and elegant way
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Author
Publisher
Packt Publishing
Publication Date
2017.
Language
English
Description
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Table of Contents
From the eBook
Cover
Copyright
Credits
About the Author
Acknowledgement
About the Reviewer
www.PacktPub.com
Customer Feedback
Table of Contents
Preface
Chapter 1: Getting Started with Shell Scripting
Getting started
Using a good text editor
Demonstrating the use of scripts
Chapter 1
Script 1
Chapter 1
Script 2
Chapter 1
Script 3
Chapter 1
Script 4
Chapter 1
Script 5
Chapter 1
Script 6
Summary
Chapter 2: Working with Variables
Using variables in scripts
Chapter 2
Script 1
Validating parameters using conditional statements
Chapter 2
Script 2
Comparison operators for strings
Chapter 2
Script 3
Chapter 2
Script 4
Chapter 2
Script 5
Environment variables
Chapter 2
Script 6
Chapter 2
Script 7
Summary
Chapter 3: Using Loops and the sleep Command
Using loops
Chapter 3
Script 1
Chapter 3
Script 2
Chapter 3
Script 3
Screen manipulation
Chapter 3
Script 4
Chapter 3
Script 5
Indenting your code
Chapter 3
Script 6
Using the for statement
Chapter 3
Script 7
Chapter 3
Script 8
Leaving a loop early
Chapter 3
Script 9
The sleep command
Chapter 3
Script 10
Chapter 3
Script 11
Watching a process
Chapter 3
Script 12
Creating numbered backup files
Chapter 3
Script 13
Summary
Chapter 4: Creating and Calling Subroutines
Clearing the screen
Chapter 4
Script 1
File redirection
Command piping
Chapter 4
Script 2
Chapter 4
Script 3
Subroutines
Chapter 4
Script 4
Using parameters
Chapter 4
Script 5
Chapter 4
Script 6
Making a current backup of your work
Chapter 4
Script 7
Summary
Chapter 5: Creating Interactive Scripts
Chapter 5
Script 1
Chapter 5
Script 2
Chapter 5
Script 3.
Chapter 5
Script 4
Chapter 5
Script 5
Chapter 5
Script 6
Chapter 5
Script 7
Chapter 5
Script 8
Summary
Chapter 6: Automating Tasks with Scripts
Chapter 6
Script 1
Chapter 6
Script 2
Chapter 6
Script 3
Chapter 6
Script 4
Cron
Chapter 6
Script 5
Chapter 6
Script 6
Chapter 6
Script 7
Summary
Chapter 7: Working with Files
Writing files
Chapter 7
Script 1
Reading files
Chapter 7
Script 2
Chapter 7
Script 3
Chapter 7
Script 4
Reading and writing files
Chapter 7
Script 5
Reading and writing files interactively
Chapter 7
Script 6
File checksums
File encryption
Chapter 7
Script 7
Summary
Chapter 8: Working with wget and curl
Introducing the wget program
wget options
wget return codes
wget configuration files
Chapter 8
Script 1
wget and recursion
wget options
curl
curl options
Chapter 8
Script 2
Summary
Chapter 9: Debugging Scripts
Syntax errors
Chapter 9
Script 1
Chapter 9
Script 2
Automatic backups
More syntax errors
Chapter 9
Script 3
Logic errors
Chapter 9
Script 4
Using set to debug scripts
Chapter 9
Script 5 and Script 6
Chapter 9
Script 7
Chapter 9
Script 8
Chapter 9
Script 9
Summary
Chapter 10: Scripting Best Practices
Verifying backups
ssh and scp
Find and use a good text editor
Environment variables and aliases
ssh prompt
Testing an archive
Progress indicator
Chapter 10
Script 1
Creating new commands from a template
Chapter 10
Script 2
Alerting the user
Chapter 10
Script 3
Summary
Index.
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ISBN
9781787125414
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