Try this. Note I have used a module to read the ini file.

#!perl
use strict;
use File::Tail;
use Config::Tiny;

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

my $app_root_dir = shift;

=head1 content of param.ini 
DIAGFILE  = diagfile
HOSTNAME1 = hostname1
HOSTNAME2 = hostname2
=cut
my $Config = Config::Tiny->read( "$app_root_dir/config/param.ini" )
      or die "$!";

my $ref = tie *DIAG,"File::Tail",(
    name        => $Config->{'_'}{'DIAGFILE'},
    interval    => 1,  # wait at start
    maxinterval => 10, # change to suit
    adjustafter => 10  # change to suit
);

my $restart;
while (my $line = <DIAG>) { 
  if ($line =~ /is higher than 5 seconds/) {
    # restart only if more than 60 seconds since last restart
    if (time() - $restart > 60) {
      run_command('stop',1);
      run_command('stop',2);
      run_command('start',1);
      run_command('start',2);
      $restart = time();
    }
  }
}

# execute start/stop
sub run_command {
  my ($action,$n) = @_;
  my $host = $Config->{_}{'HOSTNAME'.$n};
  my $cmd = join ' ','sc',"\\\\$host",$action,'AudioSrv',
  ">$app_root_dir\\logs\\${action}ServiceOutput${n}.txt";

  #system($cmd); 
  print "$cmd\n"; # replace with system after testing
}

[download]
poj

In reply to Re^5: trying to implement file tail with regular expression by poj
in thread trying to implement file tail with regular expression by mkhayat

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