Bash Shell Scripting - Variables in Functions (Local Variables)

This video tutorial explains the interaction between variables and functions in scripting. It demonstrates how to set variables, create functions, and understand variable scope. The tutorial highlights the use of the local keyword to maintain variable values outside functions, ensuring that changes within a function do not affect the global variable state. This is useful for managing variable names consistently without unintended overwrites.

How can you prevent a function from changing the value of a variable declared outside of it?

What happens to the value of the variable 'animal' after the function is executed if it was declared as local?