drivers/net/wireless/rtl8189ES_linux_v4.3.0_10600.20140220/wlan0dhcp


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#!/bin/bash

var0=`ps aux|awk '/dhclient wlan0/'|awk '$11!="awk"{print $2}'`

kill $var0
cp ifcfg-wlan0 /etc/sysconfig/network-scripts/

dhclient wlan0

var1=`ifconfig wlan0 |awk '/inet/{print $2}'|awk -F: '{print $2}'`


rm -f /etc/sysconfig/network-scripts/ifcfg-wlan0

echo "get ip: $var1"