Trouble saving output contents from a batch script

Question

I'm looking to get computers names from my network, so i decided to use this following script :

   for /L %%N in (1,1,10) do nslookup 132.147.160.%%N
    PAUSE

With this command everything is displaying correctly on the command prompt.

But with this last one not so well :

for /L %%N in (1,1,256) do nslookup 132.147.160.%%N >nslookup.txt
PAUSE

First of all, the command prompt is displaying wrong things (there's a non-desired "1" added and i don't know why):

    C:\Users\Toshiba\Desktop>nslookup 132.147.160.1  1>nslookup.txt

C:\Users\Toshiba\Desktop>nslookup  132.147.160.2  1>nslookup.txt
*** serveur1.mycompany.fr ne parvient pas à trouver 132.147.160.2 : Non-exi
stent domain

C:\Users\Toshiba\Desktop>nslookup  132.147.160.3  1>nslookup.txt
*** serveur1.mycompany.fr ne parvient pas à trouver 132.147.160.3 : Non-exi
stent domain

C:\Users\Toshiba\Desktop>nslookup 132.147.160.4  1>nslookup.txt
*** serveur1.mycompany.fr ne parvient pas à trouver 132.147.160.4 : Non-exi
stent domain
[ ... etc]

And also in nslookup.txt

i've got NO MORE THAN this output :

Serveur :   serveur1.mycompany.fr
Address:  132.147.160.1

Nom :    132.147.160.256
Address:  60.200.60.100

Please, what am i doing wrong ?

Thank you

Hello, it's on Windows 8. in "nslookup help" section, "-a" mean " conical list of names and aliases (i just tried to translate this in english). I tried the batch command without the -a, i've got the same weird "1" in the batch command results. — Damien Chinama
– Damien Chinama, Commented Jul 19, 2013 at 14:33
In english it means "Invalid option : A", so right now let's say we forget it. With "nslookup" only i am able to get the results that i'm looking for. But when i'm looking to saving the output results in a file it doesn't work, and i get the same error above. — Damien Chinama
– Damien Chinama, Commented Jul 19, 2013 at 14:59
But Non-existent domain is not an error, it means, the IP is "empty". — Endoro
– Endoro, Commented Jul 19, 2013 at 15:01

Endoro · Accepted Answer · 2013-07-19 15:09:18Z

2

try this:

@ECHO OFF &SETLOCAL
for /L %%N in (1,1,10) do nslookup 132.147.160.%%N >>nslookup.txt 2>&1
TYPE nslookup.txt

To remove the error messages from nslookup.txt, simply delete 2>&1.

answered Jul 19, 2013 at 15:09

Endoro

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1 Comment

Damien Chinama Over a year ago

It works like a charm ! Thank you very much ! I'll take a look on google of the little command that you added. Thanks again and have a nice day ! :)

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