shell脚本获取本机ip地址

IP=`ifconfig|grep -v '127.0.0.1'|grep -v 'inet6'|grep 'inet'|awk '{print $2}'|awk 'NR==1'|egrep -o '([0-9]{1,3}[\.]){3}[0-9]{1,3}'`
echo ${IP}