#!/usr/bin/perl
use strict;
use warnings;
my $Time_Stamp ;
my $User_Name;
my $Success;
my $Failure;
my $ErrorCode;
my $ErrorMsg;
my $logDir = $ARGV[0]; 
my $logPrefix = $ARGV[1]; 
my $log;
my $line;
die "usage: $0 <logDir> <logPrefix>" unless $logDir and $logPrefix;  
die "Log dir $logDir doesn't exist" unless -d "$logDir";  
for my $logFile ( glob("$logDir/${logPrefix}*") ) 
{ 
	open($log, "<", $logFile) or die "Can't open $logFile for reading.";
	open(FP_OUT,">temp12") or die "cannot create file temp1 for writing";
	print "Processing file $logFile...\n";
	

	OUTER: while( $line = <$log> )
	{

		 chomp($line);
		 if ($line =~ /^(.*)INFO:.*QNA Step - AUTH IN PROGRESS/) 
		 {
				$Time_Stamp = $1;
				printf FP_OUT "$Time_Stamp,";
				QnA_search_for_sucess_or_failure() ;
				#QnA_search_for_userID() ;
				next OUTER;

		 }

	 }
}

sub QnA_search_for_sucess_or_failure
 
{
OUTER1: while ( $line = <$log> )

{
	  if ($line =~ /QNA Auth.*Success\s*and\s*Complete/)

	   {
				printf FP_OUT "Success,";
				print STDOUT  "In Success,\n";
				$ErrorMsg="null";
				while ( $line = <$log> )
				{
					 if ($line =~ /ArAuthFrameworkImpl::doPostAuth.*Authentication\s*mechanism\s*returned\s*\[(..*)\]\s*for\s*AuthIdentity\s*\[(..*)\]/)

						 {
							   print "$2\n";
							  printf FP_OUT "$2, ${1}, $ErrorMsg\n";
							  last OUTER1;

						 }
				 }
				 
	   }
	   if($line =~ /Message.*QNA\s*Auth\s*Failed\((..*)\).*/)
	   {
				 $ErrorMsg=$1;
				 printf FP_OUT  "Failure,";
				 print STDOUT  "In Failure,\n";
				 while ( $line = <$log> )
					  {
						 if ($line =~ /ArAuthFrameworkImpl::doPostAuth.*Authentication\s*mechanism\s*returned\s*\[(..*)\]\s*for\s*AuthIdentity\s*\[(..*)\]/)

						  {
							  
							  print "$2\n";
							  printf FP_OUT "$2, ${1}, $ErrorMsg\n";
							  last OUTER1;
						  }

					  }

				 
	   }
	  }
	  
}

The below snippet is taken from the logfile.I am using while loops because there are many lines above and inbetween this snippet.
<CODE>
Tue May 19 22:55:13.649 2009 Morocco Standard Time INFO:    pid 2172 tid 3412: 160: 10083504: QNA Step - AUTH IN PROGRESS
Tue May 19 22:55:13.649 2009 Morocco Standard Time INFO:    pid 2172 tid 3412: 160: 10083504: QNA Auth - Success and Complete, Returning SUCCESS
Tue May 19 22:55:13.665 2009 Morocco Standard Time INFO:    pid 2172 tid 3412: 17: 10083504: ArAuthFrameworkImpl::doPostAuth::1:10083487:: Authentication mechanism returned [0] for AuthIdentity [12345]


and for QnA failure the line comes like this in place of success line--
Tue May 19 22:56:21.962 2009 Morocco Standard Time INFO:    pid 2172 tid 688: 160: 10083554: Err[115261735], Message: QNA Auth Failed(Invalid Credentials), Repeating the challenge and Returning FAILED



##</code><code>##

C:\Perl Script>perl  QnA_Authentication.pl . logfile.txt
Processing file ./logfile.txt...
In Success,
01503164
In Success,
01822755
In Failure,
01401058
Processing file ./logfile.txt.bak...