Final answer:
The 'transaction' command in Splunk groups events with common attributes into a single transaction. It includes parameters such as 'startswith', 'endswith', 'maxspan', and 'maxpause' to define a transaction's scope and duration.
Step-by-step explanation:
The transaction command in Splunk is used to group together a set of events that share common characteristics into a single transaction. This command is essential for correlating events over time and is often used when you need to track multi-event activities, such as a user session or a complete transaction in a log file.
A transaction is defined by a set of parameters within the command, including but not limited to startswith and endswith which specify the start and end conditions for the transaction, maxspan which defines the maximum time duration of a transaction, and maxpause which sets the maximum gap between events to be included in the same transaction.
Here's an example of the transaction command:
... | transaction startswith="login" endswith="logout"
This command would group together events that start with a 'login' action and end with a 'logout' action, thus forming a single transaction representing a user session.