hwinfo is a free and open command line source system information tool for Linux. Using this tool you can find your system hardware and software information. It is openSUSE project but you can install it on any linux distribution. You can get the details about graphics card, monitor, modem, scanner, CPU, Memory RAM, hard disk, bios, camera, CD/DVD drives, keyboard, mouse, printer, bluetooth, network interface card, USB and more. It is based on libhd library. It is released under GPL v2+ license.