4 examples for whois

  # Display WHOIS information of given website.
whois http://example.com
        

  # Make whois ip if you only know domain name via host and sed
for i in `host bropages.org | head -1 | sed 's/^[^0-9]*//g'`; do whois $i; done
        

  # Make whois ip if you only know domain name via host and grep
for i in `host bropages.org | head -1 | grep -Eo '([0-9]{1,3}\.){1,3}[0-9]{1,3}'`; do whois $i; done
        

  # Make whois ip if you only know domain name via host and awk
for i in `host bropages.org | head -1 | awk -F"[: ]+" '/has address/ {print $4}'`; do whois $i; done