for i in `wget -qO- http://www.nmc.cn/publish/satellite/FY4A-true-color.htm | grep -Eoi '<div class=\"col-xs-12[^>]+>' | grep -Eo '(http|https)://[^>?]+'`
do
wget -S -c $i
if [ "`ls -l ${file} | awk '{print $5}'`" = "0" ]; then
rm -f $file
fi
done