kill - QUIT `/usr/local/nginx/logs/nginx.pid`
kill - QUIT `/usr/local/nginx/logs/nginx.pid`
出现以下问题：-bash:`/usr/local/nginx/logs/nginx.pid:Permission denied
解决方法：sudo ./sbin/nginx -t
具体情况如下：
http://user.qzone.qq.com/380922143/infocenter#!app=2&via=QZ.HashRefresh&pos=1379065657