I'd guess you have a line that doesn't start with a timestamp. How about 
last if $log_line =~ /^\d{4}-\d\d-\d\d \d\d:\d\d:\d\d/ && $log_line lt
+ $earliest;

[download]
Or make your test code print out the line that made it stop: 
if ($log_line lt $earliest) {
   use Data::Dumper;
   $Data::Dumper::Useqq = 1;
   print Dumper("stopped on $log_line"),"\n";
}

[download]

In reply to Re: Problem using File::ReadBackwards by ysth
in thread Problem using File::ReadBackwards by vxp

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