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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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asadmin-jms-ping(1AS)						   User Commands					     asadmin-jms-ping(1AS)

NAME
jms-ping - checks to see if the JMS provider is up and running SYNOPSIS
jms-ping --user admin_user [--password admin_password] [--host localhost] [--port 4848] [--passwordfile filename] [--secure|-s] [--terse=false] [--echo=false] [--interactive=false] Checks to see if the JMS provider is up and running. This command is supported in remote mode only. OPTIONS
--user authorized domain application server administrative username. --password password to administer the domain application server. --host machine name where the domain application server is running. --port port number of the domain application server listening for administration requests. --passwordfile file containing the domain application server password. --secure if true, uses SSL/TLS to communicate with the domain application server. --terse indicates that any output data must be very concise, typically avoiding human-friendly sentences and favoring well- formatted data for consumption by a script. Default is false. --echo setting to true will echo the command line statement on the standard output. Default is false. --interactive if set to true (default), only the required password options are prompted. Example 1: Using jms-ping asadmin> jms-ping --user admin --password adminadmin --host bluestar --port 4848 server1 JMS Ping Status=RUNNING EXIT STATUS
0 command executed successfully 1 error in executing the command asadmin-create-jmsdest(1AS), asadmin-delete-jmsdest(1AS), asadmin-list-jmsdest(1AS) J2EE 1.4 SDK March 2004 asadmin-jms-ping(1AS)
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