ubuntu意外删除/etc/nginx后如何恢复？
1、使用purge卸载
sudo apt-get purge nginx nginx-common nginx-full
2、重新安装
sudo apt-get install nginx
3、测试
nginx -t
4、若上述方案不起作用，请尝试使用dpkg的--force-confmiss选项
sudo dpkg --force-confmiss -i /var/cache/apt/archives/nginx-common_*.deb
sudo apt-get purge nginx nginx-common nginx-full
sudo apt-get install nginx
nginx -t
sudo dpkg --force-confmiss -i /var/cache/apt/archives/nginx-common_*.deb