nginx基本操作

启动

1、基本启动
/usr/bin/nginx

2、高级启动
/usr/bin/nginx -t -c ~/mynginx.conf -g "pid /var/run/nginx.pid; worker_processes 2;"

可选项：

-c </path/to/config>

Specify which configuration file Nginx should use instead of the default.指定启动的配置文件

-g Set global directives. (version >=0.7.4)

设置全局指令

-t Don't run, just test the configuration file. nginx checks configuration for correct syntax and then try to open files referred in configuration.

测试配置文件是否可用正常启动

-s signal Send signal to a master process: stop, quit, reopen, reload. (version >= 0.7.53)

发送信号。包括停止，退出，重新开启，重新加载。

-v Print version.打印版本信息

-V Print nginx version, compiler version and configure parameters.
打印完整版本信息

-p prefix Set prefix path (default: /usr/local/nginx/). (version >= 0.7.53)
设置前缀路径

-h,-? Print help.

帮助。


如何重启？

有2种方法控制使它停止。

1、/usr/bin/nginx -s stop

2、kill -QUIT $( cat /usr/local/nginx/logs/nginx.pid )

send the 'QUIT' (Graceful Shutdown)


主进程可处理以下信号：

The master process can handle the following signals:

TERM, INT Quick shutdown 快速关闭
QUIT Graceful shutdown      优雅关闭
KILL Halts a stubborn process  中止难以停止的进程
HUP Configuration reload         配置重新加载
Start the new worker processes with a new configuration 以新的配置文件启动新的进程
Gracefully shutdown the old worker processes 优雅关闭老进程
USR1 Reopen the log files                  重新打开新的日志文件
USR2 Upgrade Executable on the fly         升级可执行       
WINCH Gracefully shutdown the worker processes 优雅关闭工作进程

参考：
[1] http://wiki.nginx.org/NginxCommandLine