Learning Path: Bash Scripting

Table of contents

1. Bash Scripting Learning Path by Sander van Vugt
   1. Introduction
2. Bash Scripting Fundamentals by Sander van Vugt
   1. Introduction
3. Lesson 1: Creating Your First Shell Script
   1. Learning objectives
   2. 1.1 Why Scripting in Bash Makes Sense
   3. 1.2 Choosing an Editor
   4. 1.3 Core Bash Script Ingredients
   5. 1.4 Storing and Running the Script
   6. 1.5 Using Bash Internal Commands versus External Commands
   7. 1.6 Finding Help About Scripting Components
   8. Exercise 1
   9. Exercise 1 Solution
4. Lesson 2: Working with Variables and Parameters
   1. Learning objectives
   2. 2.1 About Terminology
   3. 2.2 Using and Defining Variables
   4. 2.3 Defining Variables with the read Command
   5. 2.4 Understanding Variables and Subshells
   6. 2.5 Sourcing
   7. 2.6 Quoting
   8. 2.7 Handling Script Arguments
   9. 2.8 Understanding the Need to Use Shift
   10. 2.9 Using Command Substitution
   11. 2.10 String Verification
   12. 2.11 Using Here Documents
   13. Exercise 2
   14. Exercise 2 Solution
5. Lesson 3: Transforming Input
   1. Learning objectives
   2. 3.1 Working with Substitution Operators
   3. 3.2 Using Pattern Matching Operators
   4. 3.3 Understanding Regular Expressions
   5. 3.4 Calculating
   6. Exercise 3
   7. Exercise 3 Solution
6. Lesson 4: Using Essential External Tools
   1. Learning objectives
   2. 4.1 Using grep
   3. 4.2 Using test
   4. 4.3 Using cut and sort
   5. 4.4 Using tail and head
   6. 4.5 Using sed
   7. 4.6 Using awk
   8. 4.7 Using tr
   9. Exercise 4
   10. Exercise 4 Solution
7. Lesson 5: Using Conditional Statements
   1. Learning objectives
   2. 5.1 Using if then fi
   3. 5.2 Using and ||
   4. 5.3 Using for
   5. 5.4 Using case
   6. 5.5 Using while and until
   7. Exercise 5
   8. Exercise 5 Solution
8. Lesson 6: Using Advanced Scripting Options
   1. Learning objectives
   2. 6.1 Working with Options
   3. 6.2 Using Functions
   4. 6.3 Working with Arrays
   5. 6.4 Defining Menu Interfaces
   6. 6.5 Using trap
   7. Exercise 6
   8. Exercise 6 Solution
9. Lesson 7: Script Debugging and Analyzing
   1. Learning objectives
   2. 7.1 Design Considerations
   3. 7.2 Common Analyzing Tools
   4. 7.3 Using bash -x
   5. Exercise 7
   6. Exercise 7 Solution
10. Lesson 8: Scripting by Example
    1. Learning objectives
    2. 8.1 Monitoring CPU Utilization Part 1
    3. 8.2 Monitoring CPU Utilization Part 2
    4. 8.3 Practicing Calculation
    5. 8.4 Reading an init Script
    6. 8.5 Using a Countdown Script
    7. 8.6 Efficient if then fi
    8. 8.7 Simple Process Monitoring
11. Summary
    1. Bash Scripting Fundamentals: Summary
12. Advanced Bash Scripting by Sander van Vugt
    1. Introduction
13. Lesson 1: Reviewing Basics
    1. Learning objectives
    2. 1.1 Using Pattern Matching
    3. 1.2 Using Command Substitution
    4. 1.3 Using Arguments and Variables
    5. 1.4 Using Iteration Structures (Part 1)
    6. 1.5 Using Iteration Structures (Part 2)
    7. 1.6 Using Arrays
    8. 1.7 Using Functions
    9. 1.8 Analyzing Math Script
    10. Exercise 1
    11. Exercise 1 Solution (Part 1)
    12. Exercise 1 Solution (Part 2)
14. Lesson 2: Scripting Best Practices
    1. Learning objectives
    2. 2.1 Organizing Scripts
    3. 2.2 Working With Include Files
    4. 2.3 Using Internal vs. External Commands
    5. 2.4 Making Shell Scripts More Secure
    6. 2.5 Analyzing Foo Script
    7. 2.6 Analyzing Cd Script
    8. Exercise 2
    9. Exercise 2 Solution
15. Lesson 3: Understanding Syntax Differences
    1. Learning objectives
    2. 3.1 Understanding the Origins of Bash
    3. 3.2 Using Bourne Style Syntax
    4. 3.3 Using C-Style Syntax
    5. 3.4 Using Different Methods to Test
    6. 3.5 Using Different Methods to Calculate
    7. 3.6 Analyzing Tcsh Script
    8. 3.7 Analyzing Tcsh Script in Bash
    9. Exercise 3
    10. Exercise 3 Solution
16. Lesson 4: Using Advanced awk, sed, and Regular Expressions
    1. Learning objectives
    2. 4.1 Using Regular Expressions
    3. 4.2 Understanding sed Basics
    4. 4.3 Performing Advanced sed Operations
    5. 4.4 Understanding awk Basics
    6. 4.5 Performing Advanced awk Operations
    7. Exercise 4
    8. Exercise 4 Solution
17. Lesson 5: Analyzing Advanced Scripts
    1. Learning objectives
    2. 5.1 Analyzing the Structure
    3. 5.2 Analyzing the Parts in the Script
    4. 5.3 Analyzing the /etc/init.d/network Script
    5. 5.4 Analyzing the /etc/profile Script
    6. Exercise 5
    7. Exercise 5 Solution
18. Lesson 6: Writing a Complex Script
    1. Learning objectives
    2. 6.1 Defining the Mission Statement
    3. 6.2 Creating the Script Structure
    4. 6.3 Writing the Code
    5. 6.4 Considering Next Steps (Part 1)
    6. 6.5 Considering Next Steps (Part 2)
    7. 6.6 Implementing Next Steps
    8. Exercise 6
    9. Exercise 6 Solution (Part 1)
    10. Exercise 6 Solution Part 2
19. Lesson 7: Scripting for Performance
    1. Learning objectives
    2. 7.1 Optimizing Loops
    3. 7.2 Minimizing File Writes
    4. 7.3 Minimizing External Command Usage
    5. 7.4 Avoiding Useless Commands (cat /etc/passwd | grep root)
    6. 7.5 Minimizing Operations
    7. 7.6 Analyzing Script Performance with time
    8. 7.7 Analyzing Script Performance with strace
    9. Exercise 7
    10. Exercise 7 Solution
20. Lesson 8: Beyond Bash; Scripting in Python
    1. Learning objectives
    2. 8.1 Comparing Bash to Python
    3. 8.2 Programming in Python
    4. 8.3 Writing your First Python Script
    5. 8.4 Working with Arguments
    6. 8.5 Using Indentation
    7. 8.6 Interactive Python
    8. 8.7 Writing Output to Files
    9. Exercise 8
    10. Exercise 8 Solution
21. Summary
    1. Advanced Bash Scripting: Summary