nginx -s reload失败

在重启nginx时报错误。

wangkongming@ThinkPad-T410 ~ $ sudo /usr/sbin/nginx -s reload
nginx: [error] invalid PID number "" in "/run/nginx.pid"

google一番，下面是解决办法

nginx -s reload is only used to tell a running nginx process to reload its config. After a stop, you don't have a running nginx process to send a signal to. Just run nginx (possibly with a -c /path/to/config/file)

我本机的是用下面的命令

wangkongming@ThinkPad-T410 /etc/nginx $ sudo /usr/sbin/nginx -c /etc/nginx/nginx.conf