Which command is used to obtain information about system hardware?

The command used to obtain detailed information about system hardware is lshw. This utility provides comprehensive details regarding various components of the system, including CPU, memory, storage devices, network interfaces, and peripherals. When executed, lshw produces an organized listing of hardware components, which makes it very useful for diagnosing hardware issues or checking the specifications of a system.

The reason lshw is particularly effective is that it offers detailed information in a structured format and can generate output in different formats, such as plain text or XML. This flexibility allows users to easily read the details or integrate them into other applications.

While hwinfo, sysinfo, and hardinfo are also utilities that provide system information, they serve slightly different purposes or may not be as comprehensive in detailing hardware settings and configurations. Each of those alternatives might be used for general system information purposes, but they do not focus exclusively on the hardware level to the same depth that lshw does.