๐ 20-extended Index
๐ Extended Section
Intermediate shell programming concepts for building robust scripts.
๐ Contents
- Extended: Conditionals and Tests
- Extended: Error Handling
- Extended: Filesystem Operations
- Extended: Functions and Libraries
- Extended: Loops and Iteration
- Extended: Parameters and Expansions
- Extended: Pipelines and Process Substitution
- Extended: Portability Patterns
- Extended: Subprocesses and Subshells
- Extended: Text Processing
- Extended: Traps and Signals
๐ฏ Learning Objectives
โ Implement complex conditional logic and testing โ Handle errors gracefully with proper cleanup โ Create reusable functions and modular scripts โ Master text processing with standard Unix tools โ Handle signals and implement trap handlers
๐ Quick Reference
| Topic | Key Concepts |
|---|---|
| Conditionals | if/elif/else, case statements, test operators |
| Functions | Definition, scope, return values, libraries |
| Loops | for, while, until, loop control |
| Signals | trap, SIGINT, SIGTERM, cleanup handlers |
| Text Processing | grep, sed, awk, cut, sort, uniq |