Another BASH Scripting question

[pegasoft-iRg7kjdsKiH3fQ9qLvQP4Q at public.gmane.org]

Hi All,

If anyone is looking for a good read!

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Linux Shell Scripting with Bash
Author: Ken Burtch
Published By: Sams
Trade Paperback
ISBN:0672326426
Published: January 2004
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Dan Braun


--
Dan Braun - PegaSoft Canada / CityTV
danb.nospam-iRg7kjdsKiH3fQ9qLvQP4Q at public.gmane.org


-----Original Message-----
From: owner-tlug-lxSQFCZeNF4 at public.gmane.org [mailto:owner-tlug at ss.org] On Behalf Of Madison
Kelly
Sent: Monday, February 09, 2004 12:44 PM
To: tlug-lxSQFCZeNF4 at public.gmane.org
Subject: [TLUG]: Another BASH Scripting question

Hi all,

   Sorry for asking so many questions! I am on quite the learning curve 
at the moment! :)

   I am on the last portion of my firewall script and I need something 
like an array (though judging from what I have read on array's, not 
exactly one).

   Here is what I am trying to do: I have rules for multiple servers. 
Later on we will add more servers. I already will have to copy/paste the

variables and update the data for the servers but I don't want to have 
to edit the actual script. To do this, I want to have the script read 
the value from a variable but have part of that variable name itself be 
dynamic. This is what is stumping me...

   In my head, I am trying to do this:

# How many servers do we have?
SRV_NAME="SRV1 SRV2"

# Rules for server <server>
SRV1_SNAT_IP="192.168.2.10:111.222.333.44
SRV1_IB_TCP="22 25 53 80 110"
SRV1_IB_UDP="22 25 53 80 110"
SRV1_LAN_TCP="22>192.168.1.12"
SRV1_LAN_TCP="22>192.168.1.12"

# Rules for server <server>
SRV2_SNAT_IP="192.168.2.11:111.222.333.45
SRV2_IB_TCP="22 80"
SRV2_IB_UDP="22 80"
SRV2_LAN_TCP="22>192.168.1.16"
SRV2_LAN_TCP="22>192.168.1.16"


echo -n "Checking to see if we have servers: "
if [ "${SRV_NAME}" != "" ] ; then
	echo "we do!"
	echo "Setting up rules for each public server: "
	for server in ${SRV_NAME} ; do
		echo "Processing: "${server}

# Here is where things break!

		echo "${server}_SNAT_IP" | {
			IFS=':' read pubip inetip
			echo "Internal IP: "${pubip}
			echo "Internet IP: "${inetip}
		}
	done
fi

The output is:

Checking to see if we have servers: we do!
Setting up rules for each server:
Processing: SRV1
Internal IP: SRV1_SNAT_IP
Internet IP:
Processing: SRV2
Internal IP: SRV2_SNAT_IP
Internet IP:


   So, my problem is that the variable name is becoming the value... How

can I go about getting the value of to cobbled together variable name 
instead?

   Thank you all so much again!!

Madison



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TLUG requests: Linux topics, No HTML, wrap text below 80 columns
How to UNSUBSCRIBE: http://tlug.ss.org/subscribe.shtml