Final answer:
The dxlookup command must be run in batch mode to process commands or operations without user interaction. Batch mode is distinct from interactive, debug, or reference mode, which serve different purposes.
Step-by-step explanation:
When using the dxlookup command, to get results you must run it in batch mode. The dxlookup command is typically associated with Directory Exchange (DX) tools or similar directory management and query operations. Running in batch mode allows the program to process a series of commands or lookup operations without the need for user interaction during its execution. Interactive mode would involve real-time user input, debug mode is intended for troubleshooting and development purposes, and reference mode is not a standard mode of operation for such commands.