sudo tcpdump -i enp2s0 -U -w - | tee test.pcap | tcpdump -nnvv -r -
https://serverfault.com/questions/960405/how-can-i-see-packets-while-capturing-with-tcpdump
https://stackoverflow.com/questions/25603831/how-can-i-have-tcpdump-write-to-file-and-standard-output-the-appropriate-data