wp site option
Adds, updates, deletes, and lists site options in a multisite installation.
Examples
# Get site registration
$ wp site option get registration
none
# Add site option
$ wp site option add my_option foobar
Success: Added 'my_option' site option.
# Update site option
$ wp site option update my_option '{"foo": "bar"}' --format=json
Success: Updated 'my_option' site option.
# Delete site option
$ wp site option delete my_option
Success: Deleted 'my_option' site option.