#!/usr/bin/perl -w
use strict;
use LWP::Simple qw(get);

my $acct="123";
my $pass="123";
my ($ip,$url);

my $ifconfig=`/sbin/ifconfig eth0`;
if ($ifconfig=~/inet addr\:((?:\d{1,3}\.){3}\d{1,3})/) {
  $ip=$1;
  print "ip: $ip\n"
}
else {
  die "Couldn't grab ip from: $ifconfig\n";
}

print "Updating..";
if ($got=get("http://www.myip.org/cgi-bin/Update.py?id=$acct&pwd=$pass&hostname=all&ip=$ip")) {
  if $got=~/SomeTextFromThePageThatWouldConfirmSuccess/) {
    print "success.\n";
  }
  else {
    die "failed: $got\n";
  }
}
else {
  die "failed: $!\n";
}