That's not normal. What does this snippet do? 

my $dhcpdconf = '';

open (DHCPDCONF, "dhcpd.conf") or die "Cannot read from file: $!";
while (<DHCPDCONF>)
{
    $devices{lc($1)} = ''
      if (/#.*#.*#.*# Modem MAC: (\w+:\w+:\w+:\w+:\w+:\w+)/
             or /subclass ".*" 1:(\w+:\w+:\w+:\w+:\w+:\w+)/);
             
    $dhcpdconf .= $_;
}

print "--\n$dhcpdconf\n--\n";

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In reply to Re: script hangs up when reading in file by chromatic
in thread script hangs up when reading in file by tombmbdil

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