Some times you need to find out the device name and other details . U can use the command
lspci = Which list all PCI devices
lshw = List hardware
lshw -C network = List device which are under group network
To find PCI devices , let us say network
lspci -v | grep Ethernet -A 1
18:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5787M Gigabit Ethernet PCI Express (rev 02)
Subsystem: Hewlett-Packard Company Device 30c0
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To find the info about network devices
it is “ifconfig”