
#!/bin/bash
#writen by Jerry
for i in `seq 1 255`;
do
{
ping 192.168.51.$i -c 2 >> /dev/null 2>&1 #无论ping到ping不到都不在前台显示
tai=$(echo $?)
if [ $tai == 0 ];
then
echo -e "\033[1;32m 192.168.51.$i is online \033[0m" #加重颜色显示online
else
echo -e "\033[1;35m 192.168.51.$i is offline \033[0m" #同上
fi
}&
done
wait
echo "all Finished!"



