https://www.jianshu.com/p/830eaceee167
https://blog.csdn.net/weixin_45766506/article/details/120670094
# 启动 nginx
./sbin/nginx -c nginx.conf
查看进程：
ps -ef | grep nginx
解决nginx 启动报错nginx: [emerg] open() "/var/run/nginx/nginx.pid" failed (2: No suchfile or directory)
