wget -N --no-check-certificate "https://raw.githubusercontent.com/chiakge/Linux-NetSpeed/master/tcp.sh"
chmod +x tcp.sh
./tcp.sh
不要随便在生产环境使用，生产环境建议手动安装
wget "https://github.com/realwhs/Linux-NetSpeed/edit/master/tcp.sh" && chmod +x tcp.sh && ./tcp.sh