Retrieves the value of the specified built-in or custom option.
Parameters
Parameter | Description |
---|---|
option_name | String value of the built-in or custom option. |
Returns
Returns one of the following, depending upon the attributes defined for the option.
- Return value of
func
(after execution) if a function is associated with the option - Default value, if one is specified for the option
- Value of the option, as passed to the script
Undef
if none of the above are specified