用来查询本机外网IP
  w3m -dump -no-cookie http://www.net.cn/static/customercare/yourIP.asp|grep  -A 2 本地上网|tail -n 1|cut -b1-

<file BASH iprecord.sh>
#########################################################################
# Author: pengjianqing@sina.com
# Created Time: Mon 10 Aug 2009 09:01:31 PM CST
# File Name: iprecord.sh
# Description: 
#########################################################################
#!/bin/bash

IP=`w3m -dump -no-cookie http://www.net.cn/static/customercare/yourIP.asp|grep  -A 2 本地上网|tail -n 1|cut -b1-`
OUTPUT=/home/pjq/ifconfig.txt
echo "************************************************" >>${OUTPUT}
date >>${OUTPUT}
echo ${IP} >>${OUTPUT}
ifconfig|grep inet >>${OUTPUT}
cat ${OUTPUT}

</file>