！/bin/bash

read -p “请输入IP地址” IP

ping -c1 -W1 $IP

if [ $? -eq 0 ];then

echo "yes"

else

echo "NO"

-hostnmae $Hostname

read -p "IP地址" IP

nmcli connection modify ens160 ipv。method manual ipv4.addresses ${IP}/24

ifdown ens160 > /dev/null

ifup ens160 > /dev/null

shell一些案例