lspci

The `lspci` command list all PCI devices including graphics cards, network adapters, and controllers. System information commands provide insight into hardware, kernel, memory, disk, and user session details.

These are typically the first tools you reach for when diagnosing system problems, capacity planning, or auditing a server's configuration. They work across most Linux distributions without additional packages.

The command accepts 4 commonly used flags shown above, though the full set of options is available in the man page (`man lspci`). The 4 examples on this page cover typical real-world usage patterns that you can copy and adapt for your own workflows.