Hello monks: I was tryng to feed a file with last ip granted by my dhcp server. Trying to inspect dhcpd.log file using tail, I tryed a simple code from documentation. test.pl

#!/usr/bin/perl

use File::Tail;

  $file=File::Tail->new("/var/log/dhcpd.log");
  while (defined($line=$file->read)) {
      print "$line";
  }

[download]

Here dont get any output nor error so, then I tryed other piece of code that works ok. test2.pl 

#!/usr/bin/perl -w

use File::Tail;
sub find_aaa_name {

    return  '/var/log/dhcpd.log';
}

my $file = File::Tail->new(
        name =>'/opt/dhcp_tail/dummy.txt', 
        interval => 1, 
        maxinterval => 1, 
        resetafter=> 5, 
        name_changes=> \&find_aaa_name, 
        ignore_nonexistant => 1
        );

while (defined($line = $file->read)) {
        print $line,"\n";    
    }

1;

[download]
Can someone give me a clue? What is the difference ; why test1 dont work and dont print even an error message and test2 works ok ? I hope it can be usefull to someone. Regards, Leo.

In reply to File::Tail can not get output by leostereo

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