When in a while infinite loop, if I introduce a second delay during the print commands nothing gets written to the file handle. If I have no delay, everything gets written to the file handle. This works: 
use strict;
use warnings;

my $log = "/tmp/log.txt";

open LOG, ">", $log or die "$!\n";

while ( 1 ) {
     my $time = localtime() ;
     print LOG "$time\n";
     print "$time\n";
}

close LOG;

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Where as if I add  sleep 5; to the while loop, it prints the time to the screen, but nothing gets written to the file. I do not understand why. Any ideas? TIA

In reply to problem writing to a file handle by natxo

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