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Top Forums Shell Programming and Scripting Perform an action if certain text exist in output (PERL) Post 302777323 by spartan22 on Thursday 7th of March 2013 03:59:34 PM
Old 03-07-2013
Perform an action if certain text exist in output (PERL)

Hello,

I'm attempting to write a tool that checks an IP address for existing PTR records then if there are no PTR records does a ping to see if it response.

Then if there is no response, it should print a message saying

This is what I have so far.

Code:
#!/usr/bin/perl
$nxdomain = "NXDOMAIN";
$ping = "100%";
while (defined($line = <>)) {
	chomp($line);
		print `nslookup $line`;
			if ($nxdomain) {
		print `ping -c 1 -w 2.0 $line`; }
			if ($ping) {
		print "IP Address '$line' is available.\n";
			}
	}

What I can't seem to get to work are the if statements for if the text NXDOMAIN is in the output and if 100% is in the output. It just goes ahead with the nslookup and then goes ahead with the ping.

Any suggestions?
Thanks!
 

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OCF_PACEMAKER_PINGD(7)					      Pacemaker Configuration					    OCF_PACEMAKER_PINGD(7)

NAME
ocf_pacemaker_pingd - pingd resource agent SYNOPSIS
[OCF_RESKEY_pidfile=string] [OCF_RESKEY_user=string] [OCF_RESKEY_dampen=integer] [OCF_RESKEY_set=string] [OCF_RESKEY_name=string] [OCF_RESKEY_section=string] [OCF_RESKEY_multiplier=integer] [OCF_RESKEY_host_list=string] [OCF_RESKEY_interval=integer] [OCF_RESKEY_attempts=integer] [OCF_RESKEY_timeout=integer] [OCF_RESKEY_options=string] pingd [start | stop | monitor | meta-data | validate-all] DESCRIPTION
This agent (ocf:pacemaker:pingd) has been replaced by the more reliable ocf:pacemaker:ping. It records (in the CIB) the current number of ping nodes (specified in the 'host_list' parameter) a cluster node can connect to. SUPPORTED PARAMETERS
OCF_RESKEY_pidfile = string [/var/run//pingd-default] PID file OCF_RESKEY_user = string [root] The user we want to run pingd as The user we want to run pingd as OCF_RESKEY_dampen = integer [5s] Dampening interval The time to wait (dampening) further changes occur OCF_RESKEY_set = string [] Set name The name of the instance_attributes set to place the value in. Rarely needs to be specified. OCF_RESKEY_name = string [pingd] Attribute name The name of the attributes to set. This is the name to be used in the constraints. OCF_RESKEY_section = string [] Section name The section place the value in. Rarely needs to be specified. OCF_RESKEY_multiplier = integer [] Value multiplier The number by which to multiply the number of connected ping nodes by OCF_RESKEY_host_list = string [] Host list The list of ping nodes to count. Defaults to all configured ping nodes. Rarely needs to be specified. OCF_RESKEY_interval = integer [1] ping interval in seconds How often, in seconds, to check for node liveliness OCF_RESKEY_attempts = integer [2] no. of ping attempts Number of ping attempts, per host, before declaring it dead OCF_RESKEY_timeout = integer [2] ping timeout in seconds How long, in seconds, to wait before declaring a ping lost OCF_RESKEY_options = string [] Extra Options A catch all for any other options that need to be passed to pingd. AUTHOR
Andrew Beekhof <andrew@beekhof.net> Author. Pacemaker Configuration 07/05/2010 OCF_PACEMAKER_PINGD(7)
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