Jeff's solution works for a file of host names:

for ip in $(cat list.txt);
do
  host $ip;
done

On Thu, Dec 4, 2014 at 3:54 PM, Raymond Norton <admin at lctn.org> wrote:

> I misunderstood the original response. Thought it was a file name
>
>
>
> I will just make scripts like this:
>
>
>
>
> for ip in x.x.x.x x.x.x.x x.x.x.x ; do
> host $ip
> done
>
>
> Works fine.
>
> Thanks
>
>
>
>
> On 12/04/2014 03:44 PM, tclug at freakzilla.com wrote:
>
>> Should still work. Here's how I'd run it on one of my servers:
>>
>> sterling at rooster:/home/sterling$ for ip in 192.168.0.100 192.168.0.65
>> 192.168.0.74; do
>>
>>> host $ip
>>> done
>>>
>> 100.0.168.192.in-addr.arpa domain name pointer tiger.yaron.org.
>> 65.0.168.192.in-addr.arpa domain name pointer wyvern.yaron.org.
>> 74.0.168.192.in-addr.arpa domain name pointer dragon.yaron.org.
>>
>> If it's not working for you, try just "host ip_address". If that fails,
>> too, you have some weird DNS stuff going on.
>>
>> On Thu, 4 Dec 2014, Raymond Norton wrote:
>>
>>  Im using IP's
>>>
>>> x.x.x.x
>>> x.x.x.x
>>>
>>>
>>> On 12/04/2014 03:40 PM, Shaden Smith wrote:
>>>       What are you using for the list of host names? The code posted
>>>       before works fine as long as you're giving it a list correctly.
>>>
>>> On Thu, Dec 4, 2014 at 3:36 PM, Raymond Norton <admin at lctn.org> wrote:
>>>       I get the following error:
>>>
>>>       Host hostnames not found: 3(NXDOMAIN)
>>>
>>>
>>>
>>>
>>>       On 12/04/2014 02:55 PM, tclug at freakzilla.com wrote:
>>>             for ip in list_of_hostnames; do
>>>             host $ip
>>>             done
>>>
>>>
>>>
>>>
>>>             On Thu, 4 Dec 2014, Raymond Norton wrote:
>>>
>>>                   I want to review out networks
>>>                   periodically for current dns
>>>                   records, using the host dns lookup
>>>                   tool. I would like to use a bash
>>>                   script and have it look up 30-50
>>>                   IPs per run. Anyone have a simple
>>>                   script for this?
>>>
>>>
>>>             _______________________________________________
>>>             TCLUG Mailing List - Minneapolis/St. Paul,
>>>             Minnesota
>>>             tclug-list at mn-linux.org
>>> http://mailman.mn-linux.org/mailman/listinfo/tclug-list
>>>
>>>
>>> --
>>> Raymond Norton
>>> LCTN
>>> 952.955.7766
>>>
>>> _______________________________________________
>>> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota
>>> tclug-list at mn-linux.org
>>> http://mailman.mn-linux.org/mailman/listinfo/tclug-list
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota
>>> tclug-list at mn-linux.org
>>> http://mailman.mn-linux.org/mailman/listinfo/tclug-list
>>>
>>>
>>>
>>>  _______________________________________________
>> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota
>> tclug-list at mn-linux.org
>> http://mailman.mn-linux.org/mailman/listinfo/tclug-list
>>
>
> --
> Raymond Norton
> LCTN
> 952.955.7766
>
> _______________________________________________
> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota
> tclug-list at mn-linux.org
> http://mailman.mn-linux.org/mailman/listinfo/tclug-list
>
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