Bash functions, unlike functions in most programming languages do not allow you to return a value to the caller. When a bash function ends its return value is its status: zero for success, non-zero ...

The one place they are pretty convenient is in languages (like Python) where multiple return values from one function can be used as multiple input parameters to another. But, the use-cases where ...

A normal Python function, when called, executes from start to finish ... However, each time the generator function encounters a yield statement, it will return the value to the loop and go to sleep.