A function is a block of code that performs a specific task.
When multiple commands share the same activity, they can be grouped into a function and reused whenever needed.

Functions help:

• Break scripts into smaller, logical parts
• Improve readability and maintainability
• Make scripts easier to test and debug
• Avoid code duplication

Unlike many programming languages, a shell function does not return a value in the traditional sense.
While workarounds exist, for this course we will use shared variables to store and retrieve results.

This approach is:

• Safer
• Easier to follow
• Easier to maintain in production scripts

• Follow the same naming conventions used for variables when declaring functions.

# Description of your function
function_name() {
    command(s)
}
'''