ls /sys/class/net/wlan0/device/driver/module/drivers #pci:rtl8723be  
systool -v -m rtl8723be  
modinfo rtl8723be  
echo "options rtl8723be ips=0" >> /etc/modprobe.d/rtl8723be.conf  
echo "options rtl8723be fwlps=0" >> /etc/modprobe.d/rtl8723be.conf  
rmmod rtl8723be && modprobe rtl8723be  
systool -v -m rtl8723be  

yum install ImageMagick -y

for fn in `find /home/ -name "*.jpg"`; do  
    if [ ! -f "$fn.non_progressive" ]; then  
      cp $fn $fn.non_progressive ;
    fi
    convert -strip -interlace Plane -quality 75% $fn.non_progressive $fn
done

find /home/ -name "*.non_progressive" -delete