How to clear a configuration using config:set command from terminal?

you may know that a store configuration value can be set from terminal using this command

php bin/magento config:set web/secure/base_url http://127.0.0.1/magento/

But today I came accross a situation where I had to reset the value for a configuration or if I say in database terms to set the value of configuration to null in core_config_data table.

Does anybody know how is that possible from terminal?