11-03-2011
Help with a For loop and variables
Greetings. I'm completely new to shell scripting and quickly trying to catch on. Here's my scenario:
I have a text file, named ip.txt, containing IP addresses. I want to automatically perform a whois query on each address in the file, search the output for the country, and then put both the IP address and the corresponding country together into a new file.
Here's what I've come up with so far:
Quote:
for i in `cat ./ip.txt`; do whois $i | grep -i 'country:'>>./country.txt; done
The problem with this, obviously, is that it doesn't list the IP address in the output file.
To the best that I can tell, I somehow need to store the grep results as a variable, and then maybe echo both variables into a new file.
Am I on the right track?
In the event that it matters, the system I'm trying to do this on is Debian 6.0.3.
Thanks!
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LEARN ABOUT CENTOS
whois.conf
WHOIS.CONF(5) Debian GNU/Linux WHOIS.CONF(5)
NAME
whois.conf - alternative WHOIS servers list for whois client
SYNOPSIS
/etc/whois.conf
DESCRIPTION
This file contains a list of WHOIS servers which can augment or override the built-in list of the client.
It's a plain text file in ASCII encoding. Each line consists of two fields: a pattern to match WHOIS object identifier and a corresponding
WHOIS server domain name.
Fields are separated by non-empty sequence of space or a tabular characters. A line starting with a hash character is a free comment and
it's not considered.
The pattern is case-insensitive extended regular expression if whois client has been compiled with POSIX regular expressions support. Oth-
erwise, simple case-insensitive suffix comparison against WHOIS object identifier is used.
Internationalized domain names (IDN) must be specified in ascii-compatible encoding (ACE) format.
EXAMPLE
.nz$ nz.whois-servers.net
# Hangul Korean TLD
.xn--3e0b707e$ whois.kr
# Private ASNs
^as645(1[2-9]|2[0-9]|3[0-4])$ whois.example.net
FILES
/etc/whois.conf
SEE ALSO
whois(1)
AUTHOR
This manual page was written by Petr Pisa <ppisar@redhat.com> and is licensed under the terms of the GNU General Public License, version 2
or higher.
Petr Pisa 9 April 2013 WHOIS.CONF(5)