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  1. or download this
    root>$ lsattr -El en0|grep "Internet Address" 
netaddr   10.1.4.43   Internet Address   True
  2. or download this
    my $ipadd = `lsattr -El en0|grep "Internet Address"`;
chomp($ipadd);
if ($ipadd =~ m/^([0-255].[0-255].[0-255].[0-255])+/) {
$ipaddress = $1;
}