ubuntu 重新安装nginx
https://askubuntu.com/questions/235347/what-is-the-best-way-to-uninstall-nginx
1.nginx停止，然后卸载：
sudo apt-get purge nginx nginx-common2.重新安装：
apt install nginx
3.修改配置，然后重启即可
nginxhttps://askubuntu.com/questions/235347/what-is-the-best-way-to-uninstall-nginx
1.nginx停止，然后卸载：
sudo apt-get purge nginx nginx-common2.重新安装：
apt install nginx
3.修改配置，然后重启即可
nginx