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domain name to IP address

/ Published in: Bash
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uses nslookup to find the IP of the domain

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  1. #!/bin/sh
  2.  
  3. # Usage: domain2ip domain.name1 ... domain.nameN
  4.  
  5. if test $# -eq 0
  6. 	then
  7. 	echo "------------------"
  8. 	echo "please add domain name to look up ex) domain2ip google.com foo.bar ..."
  9. 	echo "------------------"
  10. 	exit 1
  11. fi
  12. echo "------------------"
  13. for names in $@
  14. 	do
  15. 	command=`nslookup $1 > d2ip.temp`
  16. 	command=`grep NXDOMAIN d2ip.temp`
  17. 	if test $? -eq 0
  18. 		then
  19. 		echo "$1 is not a valid IP address"
  20. 		echo "------------------"
  21. 		command=`rm -f d2ip.temp`
  22. 		shift
  23. 	elif test $? -eq 1
  24. 		then
  25. 		ipname=`cat d2ip.temp | grep -i name`
  26. 		ipadd=`cut -f5 d2ip.temp | grep -i address`
  27. 		echo "$ipname"
  28. 		echo "$ipadd"
  29. 		echo "------------------"
  30. 		command=`rm -f d2ip.temp`
  31. 		shift
  32. 	else
  33. 	echo "script exited for another reason! :-("
  34. 	fi
  35. done
  36. exit 0

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