Determinar tarjetas/interfaz de red

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Hola, mi duda es bastante simple. Resulta que tengo un pc que tiene dos tarjetas de red pci y yo quiero saber cual es la que corresponde a la interfaz eth0 y a la eth1. Existe algún comando que me permita saber que interfaz (eth0/eth1) tiene un cable de red conectado.

Gracias

en Centos puedes

Imagen de Ascii

en Centos puedes hacer
ethtool ethXX

por ejemplo yo tengo una eth0 conectada y la eth1 desconectada

# ethtool eth0
Settings for eth0:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised auto-negotiation: Yes
Speed: 1000Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: pumbag
Wake-on: g
Current message level: 0x00000001 (1)
Link detected: yes

# ethtool eth1
Settings for eth1:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Advertised auto-negotiation: Yes
Speed: 10Mb/s
Duplex: Half
Port: MII
PHYAD: 32
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: pumbg
Wake-on: g
Current message level: 0x00000007 (7)
Link detected: no