my $logsIncDate = `date +"%b %d %H"`;
my @eigrp = ();

open SwitchLogs, $logFile or die "Could not open $logFile: $!"; 
while (<SwitchLogs>) {
    chomp;
    my $line = $_;
    if($line =~ m/$logsIncDate/ && $line =~ m/SW_MATM-4-MACFLAP_NOTIF/){
		push(@eigrp, "$line\n");
		$sendemail = 1;
	}
}

##</code><code>##

Nov 25 10:59:13 10.1.162.11/10.1.162.11 1410: Nov 25 16:59:12.724: %SW_MATM-4-MACFLAP_NOTIF: Host 30ff.0c00.d4be in vlan 162 is flapping between port Fa0/13 and port Fa0/10