UNIX for Dummies Questions & Answers

Hello, I was wondering how I can do a whois from a file with lots of ip's in this format

0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0

And so on, then print the whois data from all the ip's to one single file sort of like this "whois -r 'ipfile' > 'whoisfile'"

Thanks in advance!

\Regards

Code:

while read ip
do
     whois -r $ip
done<file

EDIT: Sorry I didn't understand that "file" was the input file I thought it was the output .. Now it's working perfectly thank you!

Hi, thanks for the fast reply.
Im sure im doing something wrong, but this is what I did..
I renamed my file with all the ips to 'ip' and put it in the same folder as my script, then I run it but I get this error

'./whois2.sh: line 5: file: No such file or directory'

here's the script:

#!/bin/bash
while read ip
do
whois -r $ip
done < file

1) create a file called ip_list and put all the IP addess in it (indeed, using the word "file" as a name is not a good idea since it is already a standard unix command).
2) create your script and run it :

Code:

#!/bin/bash
while read ip
do
     whois -r $ip
done<ip_list

Make sure you are in the right directory and that the file you specified exist in this directory
or use absolute file name.