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Course Module: Linux Shell Scripting Fundamentals

Module 1: Introduction to Linux Shell Scripting

• Understanding the Linux Shell: Bash, sh, and other shells
• Importance of Shell Scripting in Linux Administration
• Setting Up a Development Environment for Shell Scripting
• Writing Your First Shell Script: Hello World!

Module 2: Shell Script Basics

• Shell Script Structure and Syntax
• Comments and Shebang Line
• Variables and Environment Variables
• Command Substitution and Arithmetic Operations

Module 3: Input and Output in Shell Scripts

• Reading User Input with read Command
• Redirecting Output with >, >>, and tee
• Redirecting Input with < and Here Documents
• Piping and Chaining Commands with Pipes and Operators

Module 4: Conditional Statements

• Introduction to Conditional Constructs: if, elif, else
• Testing Conditions with Test Command and [[ ]]
• Logical Operators: &&, ||, !
• Case Statement for Multi-branching Conditions

Module 5: Looping Constructs

• Introduction to Looping: for, while, until
• Iterating Over Lists and Ranges
• Loop Control Statements: break and continue
• Nested Loops and Looping Through Files

Module 6: Functions and Libraries

• Defining and Calling Functions in Shell Scripts
• Passing Parameters to Functions
• Returning Values from Functions
• Using External Libraries and Including Scripts

Module 7: File Handling and Manipulation

• Working with Files and Directories: ls, mkdir, cd, etc.
• Reading and Writing Files: cat, grep, sed, awk
• File Permissions and Ownership: chmod, chown
• File System Operations: cp, mv, rm, touch

Module 8: Advanced Shell Scripting Techniques

• Error Handling and Debugging Strategies
• Signal Handling and Trapping
• Process Management: Background Processes, Job Control
• Managing Environment Variables and Shell Options

Module 9: Advanced Topics in Shell Scripting

• Regular Expressions and Pattern Matching
• String Manipulation and Text Processing
• Advanced Command Line Parsing with getopts
• Interacting with System Services and Daemons

Module 10: Shell Scripting Best Practices and Optimization

• Writing Efficient and Maintainable Shell Scripts
• Code Organization and Documentation
• Shell Script Testing and Debugging Tools
• Security Best Practices: Avoiding Common Pitfalls

Each module will include hands-on exercises, quizzes, and assignments to reinforce learning and practical application of Linux shell scripting concepts.