Shell Environment and Variables
July 1, 2026 · View on GitHub
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Learn how to manage and customize your shell environment. This module covers environment variables, the PATH variable, creating custom variables, shell configuration persistence, and command substitution techniques.
Exercises
| Index | Name | Difficulty | Practice |
|---|---|---|---|
| 1 | Environment Variables Explained | Beginner | Start Lab |
| 2 | The PATH Variable | Beginner | Start Lab |
| 3 | Creating Custom Variables | Beginner | Start Lab |
| 4 | Persistent Configuration | Beginner | Start Lab |
| 5 | Command Substitution | Beginner | Start Lab |
| 6 | Environment Setup Script | Beginner | Start Challenge |
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