--- /dev/null
+#!/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"
+