Some tshark examples a mix of basic and somewhat advance

Viewing all IP packets
tshark -n -r filename.pcap  -Y "ip"

Viewing all TCP packets
tshark -n -r filename.pcap  -Y "tcp"

Viewing protocol hierarchy
tshark -n -r filename.pcap  -z io,phs -q

View all IP endpoints
tshark -n -r filename.pcap  -z endpoints,ip -q

View all TCP endpoints
tshark -n -r filename.pcap  -z endpoints,tcp -q

View IP conversations
tshark -n -r filename.pcap  -z conv,ip -q

View TCP conversations
tshark -n -r filename.pcap  -z conv,tcp -q

Show tabular view with field headers
tshark -n -r filename.pcap  -T fields -e ip.src -e ip.dst -e tcp.srcport -e tcp.dstport -e tcp.flags -E header=y

Verify that the first two bytes of the IP header is 0x4500
tshark -n -r filename.pcap -x "ip[0:2] == 45:00"

Source IP is 192.168.0.2
tshark -n -r filename.pcap -x "ip[12:4] == c0:a8:00:02"

destination IP is 192.168.0.1
tshark -n -r filename.pcap -x "ip[16:4] == c0:a8:00:01"

Show IPv4 Destinations/Statistics and Ports
tshark -n -r filename.pcap  -z dests,tree -q

Follow TCP stream
tshark -n -r filename.pcap  -z follow,tcp,ascii,0 -q