nginx启动、开机自启动、重启、关闭

yum -y  install nginx

# yum info nginx
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirrors.aliyuncs.com
 * epel: mirrors.aliyuncs.com
 * extras: mirrors.aliyuncs.com
 * updates: mirrors.aliyuncs.com
Installed Packages
Name        : nginx
Arch        : x86_64
Epoch       : 1
Version     : 1.10.1
Release     : 1.el7
Size        : 1.4 M
Repo        : installed
From repo   : epel
Summary     : A high performance web server and reverse proxy server
URL         : http://nginx.org/
License     : BSD
Description : Nginx is a web server and a reverse proxy server for HTTP, SMTP, POP3 and
            : IMAP protocols, with a strong focus on high concurrency, performance and low
            : memory usage.

yum -y uninstall nginx

一、启动　

cd /usr/local/nginx/sbin
./nginx

开机自启动：

cat /etc/rc.d/rc.local

#!/bin/bash
# THIS FILE IS ADDED FOR COMPATIBILITY PURPOSES
#
# It is highly advisable to create own systemd services or udev rules
# to run scripts during boot instead of using this file.
#
# In contrast to previous versions due to parallel execution during boot
# this script will NOT be run after all other services.
#
# Please note that you must run 'chmod +x /etc/rc.d/rc.local' to ensure
# that this script will be executed during boot.

touch /var/lock/subsys/local
/usr/local/nginx/sbin/nginx

直接把启动应用程序的命令放在这个文件中就可以了

二、重启

　　更改配置重启nginx　　

kill -HUP 主进程号或进程号文件路径
或者使用
cd /usr/local/nginx/sbin
./nginx -s reload

判断配置文件是否正确　

nginx -t -c /usr/local/nginx/conf/nginx.conf
或者
cd  /usr/local/nginx/sbin
./nginx -t

三、关闭

　　查询nginx主进程号

　　ps -ef | grep nginx

　　从容停止 kill -QUIT 主进程号

　　快速停止 kill -TERM 主进程号

　　强制停止 kill -9 nginx

　　若nginx.conf配置了pid文件路径，如果没有，则在logs目录下

　　kill -信号类型 '/usr/local/nginx/logs/nginx.pid'

四、升级

　　1、先用新程序替换旧程序文件

　　2、kill -USR2 旧版程序的主进程号或者进程文件名

　　　　此时旧的nginx主进程会把自己的进程文件改名为.oldbin，然后执行新版nginx，此时新旧版本同时运行

　　3、kill -WINCH 旧版本主进程号

　　4、不重载配置启动新/旧工作进程

　　　　kill -HUP 旧/新版本主进程号

　　　　从容关闭旧/新进程

　　　　kill -QUIT 旧/新进程号

　　　　快速关闭旧/新进程

　　　　kill -TERM 旧/新进程号

http://www.cnblogs.com/jianxie/p/3990377.html