Summary: Bulk rename utility
If set, Nautilus will append URIs of selected files and treat the result as a command line for bulk renaming. Bulk rename applications can register themselves in this key by setting the key to a space-separated string of their executable name and any command line options. If the executable name is not set to a full path, it will be searched for in the search path.
In the array, there must be one and only one while space behind the comma(,).
Or else, the default value can't be restored