When using the 'eval' command, what can be created in Splunk?

The 'eval' command in Splunk is designed specifically to evaluate expressions and create new fields or transform existing fields during search time. By using 'eval', you can perform calculations, manipulate strings, and change data types, effectively enabling the creation of dynamic fields tailored to your search results.

For instance, if you want to calculate the total revenue from sales data, you can create a new field that multiplies the quantity sold by the unit price using 'eval'. This functionality enriches the data output and allows for deeper analysis and reporting within Splunk.

The other options provided do not align with the specific capabilities of the 'eval' command. New scripts for automated tasks are typically handled through other methods like saved searches or workflows. Data connections to third-party tools involve integrations and are not part of the 'eval' command's role. Visual elements for dashboards are created using visualization commands and do not relate directly to the functionalities of 'eval'. Therefore, the ability to create new fields and transform existing ones during searches is what makes 'eval' a powerful and essential command in Splunk.