Just as you use the ls command to list files, Linux provides similar tools for listing hardware devices. These commands are essential for identifying the hardware connected to your system.
Listing USB Devices with lsusb
To see all the USB devices connected to your system, you can use the lsusb command. This command scans the USB hubs and reports information about the devices it finds, such as webcams, keyboards, and external drives.
lsusbFor a more structured view, you can use the lsusb -t command. This option displays the USB devices in a tree-like structure, which is helpful for understanding how devices are physically connected to the USB controllers and hubs.
Listing PCI Devices with lspci
The lspci command is used to list all PCI (Peripheral Component Interconnect) devices. These are typically internal components connected to the motherboard, such as graphics cards, network adapters, and sound cards. This command provides a quick overview of your system's core hardware.
lspciListing SCSI and SATA Devices with lsscsi
For storage devices, the lsscsi command is particularly useful. It lists all connected SCSI and SATA devices, which commonly include hard drives, SSDs, and optical drives (CD/DVD/Blu-ray). While other commands might show the storage controller, lsscsi provides direct information about the storage devices themselves, making it a valuable tool for system administrators and users managing storage.
lsscsi