shell-variables-tutorial/ ├── README.md ├── LICENSE ├── docs/ │ ├── introduction.md │ ├── basic-concepts.md │ ├── advanced-topics.md │ └── troubleshooting.md ├── examples/ │ ├── basic ...

Environment variables are key-value pairs that store information about the system environment. In Linux scripting, several built-in environment variables provide useful information and configuration ...

This post follows up on Part 1 by examining the many ways that you can test the value of variables – e.g., whether they equal particular strings like “yes” or “no”, if they have a numeric value, if ...

If you're working in a Linux environment, chances are you've encountered environment variables—even if you didn’t realize it at the time. They quietly power much of what goes on behind the scenes in ...