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Date: Wed, 6 Jun 2012 09:17:47 -0400
To: Matthias Apitz <guru@unixarea.de>
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Cc: freebsd-questions@freebsd.org
Subject: Re: IP -> e-mail
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Matthias Apitz writes:

>  > Let say my computer is connected to the internet with a cable
>  modem and has a dynamic IP address via DHCP. This address is
>  refreshed after every random days.
>
>  > I want to know the new address even when I'm not home. Like
>  send an e-mail with the new IP, I already know how to do this,
>  but how can I track the event when my computer receives the new
>  IP?
>
>  Run this in a cronjob:
>  
>  lynx -dump myip.nl | fgrep 'WAN IP'
>  
>  strore the result in a file and when it changes, trigger a mail;

	Or, using only tools in the base system:

ifconfig | head | grep "inet " | awk '{print $2}'


				Robert Huff