Which command would you use in Splunk to view existing field aliases?

The command to view existing field aliases in Splunk is indeed the alias command. This command is specifically designed to list the field aliases that have been defined in the system, allowing users to see how different fields can be referenced or accessed within their data. When executed, it provides a structured output that indicates which field names are associated with which aliases, thus enhancing understanding and usability of the data in queries.

Other commands like table, fields, and addtotals serve different purposes. The table command is utilized primarily for formatting search results into a table layout, while fields manages which fields are shown or excluded in search results. The addtotals command is used to append total values to the results of a search, but it does not relate to field aliases. Understanding the specific function of each command is crucial for leveraging Splunk effectively to manage and analyze data.