Thank you very much for your help. I did what you said but the issue is once I reach to while (<DIAG>) it hang for some reason. please help!! 

 

use File::Tail;

my $diagfile;
my $Checkoutput;
my $hostName1;
my $hostName2;

sub init {
    my ($dir) = @_;
    my $line;
    my $var;
    my $val;
    open (LREP2, "$dir/config/param.ini");
    while ($line = <LREP2>) {
           chop $line;
           ($var,$val) = split(/=/, $line);
           
           if ($var eq "DIAGFILE") {
               $diagfile = $val;
           }
           if ($var eq "CHECKFILE") {
               $Checkoutput = $val;
           }
           if ($var eq "HOSTNAME1") {
               $hostName1 = $val;
           }
           if ($var eq "HOSTNAME2") {
               $hostName2 = $val;
           }
    }
    close LREP2;
}

#MAIN

die "Usage: $0 <app_root_dir>" unless @ARGV == 1;

my $app_root_dir = shift;
&init($app_root_dir);
my $line;
open (DIAG, "$diagfile");
my $ref=tie *DIAG,"File::Tail",(name=> $diagfile);
my $clock = 0;
while (<DIAG>){
    while (1) {
        open LOGFILE, ">>$app_root_dir/logs/detailedlog.log";
        while ($line = <DIAG>) {

            if ($line =~ /is higher than 5 seconds/) {
                if ($clock == 0) {
                    $clock = 60;
                    my $commandStr2 = "sc \\\\$hostName1 stop AudioSrv
+ >$app_root_dir\\logs\\StopServiceOutput1.txt" ;
                    print LOGFILE "about to execute=$commandStr2\n";
                    system($commandStr2);
                    print LOGFILE "just executed=$commandStr2\n";
                    my $commandStr4 = "sc \\\\$hostName2 stop AudioSrv
+ >$app_root_dir\\logs\\StopServiceOutput2.txt" ;
                    print LOGFILE "about to execute=$commandStr4\n";
                    system($commandStr4);
                    print LOGFILE "just executed=$commandStr4\n";
                    sleep(5);
                    my $commandStr3 = "sc \\\\$hostName1 start AudioSr
+v >$app_root_dir\\logs\\StartServiceOutput1.txt";
                    print LOGFILE "about to execute=$commandStr3\n";
                    system($commandStr3);
                    print LOGFILE "just executed=$commandStr3\n";
                    my $commandStr5 = "sc \\\\$hostName2 start AudioSr
+v >$app_root_dir\\logs\\StartServiceOutput2.txt";
                    print LOGFILE "about to execute=$commandStr5\n";
                    system($commandStr5);
                    print LOGFILE "just executed=$commandStr5\n";
                }
                $clock --;
                sleep(1);
            }    
            close LOGFILE;        
        }
        sleep(65);
    }
}

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In reply to Re^2: trying to implement file tail with regular expression by mkhayat
in thread trying to implement file tail with regular expression by mkhayat

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