quick pcap parser for malware

gistfile1.txt

#!/bin/bash
#simple pcap extractor for malware analysis
#@grotezinfosec
#arguments passed
pcap=$1
clear
if [[ $# -lt 1 ]] ; then
    echo "========================"
    echo "=        Usage         ="
    echo "=./pcap_check PCAP-FILE="
    echo "========================"
    exit 0
fi
echo "DNS"
echo "==================================="
    tshark -r $1 -T fields -e ip.src -e dns.qry.name -2R "dns.flags" | awk -F" " '{ print $2 }' | sort -u
    echo ""
    echo "Hostnames"
    echo "==================================="
    tshark -T fields -e http.host -r $1 |sort -u
    echo ""
    echo "useragents"
    echo "==================================="
    tshark -Y 'http contains "User-Agent:"' -T fields -e http.user_agent -r $1 | sort -u
    echo ""
    echo "email addresses"
    echo "==================================="
    tshark -r $1 -Y "data-text-lines" -T fields -e text |grep -Eio '\b[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}\b' | sort -u
    echo ""
    echo "urls"
    echo "==================================="
    tshark -r $1 -T fields -e http.host -e http.request.uri -Y 'http.request.method == "GET"' |sort -u
    echo ""
echo "==================================="
echo "completed"
echo "==================================="