The -v option with the unset command in a shell (like bash or zsh) is used to indicate that you want to unset (remove) a variable that is marked as "exported."
When you use unset -v variable_name, it removes the variable from the environment, meaning it will no longer be available in the current shell session or any child processes.
Here's a quick example:
export MY_VAR="Hello"
unset -v MY_VARAfter running the unset -v MY_VAR command, MY_VAR will no longer exist in the environment.
