Which command is used to clean out an index in Splunk?

The command used to clean out an index in Splunk is designed to maintain and manage the data being stored. The choice that specifies "splunk clean [eventdata | userdata | all] [-index name]" allows administrators to selectively clean different aspects of the data indexed in Splunk.

This command provides flexibility by allowing you to specify exactly what you want to clean. The options included—eventdata, userdata, or all—give users the ability to target specific types of data for removal. For instance, if you want to delete only the event data from a specific index, you can do that without affecting the user data. This level of specificity is crucial for effective index management, especially in production environments where data retention policies may differ.

This command is also beneficial when you need to free up space or remove test data without inadvertently impacting other necessary datasets within your Splunk environment. Being able to specify an index name further refines control, enabling you to manage multiple indexes efficiently.

In contrast, options that simply mention one aspect of data cleaning or do not allow for index specifications lack this level of control, making the selected command preferable for comprehensive index management.