Which command would you use to gather system status information in a FortiGate device?

Using the command "get system status" is appropriate for gathering system status information in a FortiGate device because this command specifically retrieves real-time information about the unit's current status, including details such as the firmware version, the operational mode, serial number, and system uptime. This command provides a comprehensive overview of the system's health and operational parameters, making it crucial for network administrators when they need to assess the performance and status of their FortiGate device.

In contrast, other options like "show system information" may not exist as a standalone command in all contexts or may not provide the same level of detailed status checking, "check device status" is not a valid command in the FortiGate CLI, and "retrieve system log" pertains to accessing log data rather than querying current system operational status. Therefore, "get system status" is the precise command for the task at hand.