Error Handling & Exit Status
Implement robust error checking in your scripts by understanding exit statuses and using 'set -e' and conditional logic.
Welcome to Error Handling
In this lesson, we'll make your Bash scripts more robust by learning how to handle errors effectively.
Imagine a script that performs many steps. If one step fails, you'd want your script to stop or at least know about the failure, right? That's where error handling comes in!
What is an Exit Status?
Every command you run in the Linux shell returns an exit status (sometimes called an exit code or return code).
- A status of 0 means the command completed successfully.
- A non-zero status (e.g., 1, 2, 127) indicates some form of failure or error.
It's like a traffic light for your commands!
All lessons in this course
- Debugging Bash Scripts (set -x, trap)
- Error Handling & Exit Status
- Scripting Best Practices & Linting
- Testing Bash Scripts with Bats