ubuntu rtl8723be config/fix

#!/bin/sh
# This is a script used to "Fix" the WiFi on several Levono Laptops, it only need be run once
# http://ubuntuforums.org/showthread.php?t=2244018
# https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1320070

# Check if patch is installed
if [ -f /etc/modprobe.d/rtl8723be.conf ];then
    echo "You already installed this"
    read -p "Would you like to remove it? (y/n) " yn
    if [ "$yn" = "y" ];then
        sudo rm /etc/modprobe.d/rtl8723be.conf
        sudo rm /etc/default/bluetooth
    fi
    exit
fi

# Check if patch is needed
if [ $(lspci | grep -i rtl8723be | wc -l) -eq 0 ];then
    echo "This system does not have a RTL8723BE to apply a fix for"
    exit
fi

# Patch for next boot
echo "options rtl8723be fwlps=N ips=N" | sudo tee /etc/modprobe.d/rtl8723be.conf
echo "blacklist ideapad-laptop" | sudo tee -a /etc/modprobe.d/rtl8723be.conf
echo "BLUETOOTH_ENABLED=0" | sudo tee /etc/default/bluetooth

# Apply patch to current session (live session of 15.04 may freeze)
sudo service bluetooth stop
sudo rmmod ideapad-laptop
sudo rmmod rtl8723be
sudo modprobe rtl8723be

# Print notes on screen
echo "Bluetooth is now disabled, this is believed to impove WiFi stability!"
echo "If you want to try bluetooh run this command:"
echo "sudo service bluetooth start"
echo "To make it permanent run this:"
echo "sudo rm /etc/default/bluetooth"