所以我试图为我的树莓派创建一个安装脚本，第一件事是给它们一个静态IP。
echo -e "Enter static IP"
read static_ip
echo -e "Enter DNS IP"
read dns_ip
echo -e ""
echo -e "The following settings will be set"
echo -e "\e[32mStatic IP:\e[0m\t${static_ip}"
echo -e "\e[32mDNS IP:\e[0m\t${dns_ip}"
sudo echo "interface wlan0" >> /etc/dhcpcd.conf
sudo echo "static ip_address=${static_ip}/24" >> /etc/dhcpcd.conf
sudo echo "static routers=${dns_ip}" >> /etc/dhcpcd.conf
sudo echo "static domain_name_servers=${dns_ip}" >> /etc/dhcpcd.conf
但它一直说“权限被拒绝”，我想知道我在这里做错了什么？