You can use tcpdump command in your Linux system. This command will help you to find out the available interfaces as shown below.
[root@localhost ~]# tcpdump -D
1.enp0s3 [Up, Running]
2.lo [Up, Running, Loopback]
3.any (Pseudo-device that captures on all interfaces) [Up, Running]
5.bluetooth-monitor (Bluetooth Linux Monitor) [none]
6.nflog (Linux netfilter log (NFLOG) interface) [none]
7.nfqueue (Linux netfilter queue (NFQUEUE) interface) [none]
8.usbmon0 (All USB buses) [none]
9.usbmon1 (USB bus number 1)
10.usbmon2 (USB bus number 2)
Hope this helps!
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