overwrite 70-persistent-net.rules

#!/bin/bash

init="# USB device 0x:0x (rtl8723bu)"
sudo echo $init > "/etc/udev/rules.d/70-persistent-net.rules"

ii=0
if [ -f "/sys/class/net/wlan0/address" ];
then
    wlan_addr=$(</sys/class/net/wlan0/address)
else
while true
do
    if [ -f "/sys/class/net/rename$ii/address" ];
    then
        wlan_addr=$(</sys/class/net/rename$ii/address)
     break
    fi
    ii=$(($ii+1))
done
fi
rule=SUBSYSTEM=="\"net\", ACTION==\"add\", DRIVERS==\"?*\", ATTR{address}==\"$wlan_addr\", ATTR{dev_id}==\"0x0\", ATTR{type}==\"1\", KERNEL==\"wlan*\", NAME=\"wlan0\""
echo $rule
sudo echo $rule >> "/etc/udev/rules.d/70-persistent-net.rules"


if [ -f "/sys/class/net/wlan1/address" ];
then
    wlan_addr=$(</sys/class/net/wlan1/address)
else
    wlan_addr=$(</sys/class/net/p2p0/address)
fi
rule=SUBSYSTEM=="\"net\", ACTION==\"add\", DRIVERS==\"?*\", ATTR{address}==\"$wlan_addr\", ATTR{dev_id}==\"0x0\", ATTR{type}==\"1\", KERNEL==\"wlan*\", NAME=\"p2p0\""
echo $rule
sudo echo $rule >> "/etc/udev/rules.d/70-persistent-net.rules"