开机自启动nginx

这里使用的是编写shell脚本的方式来处理

vi /etc/init.d/nginx  (输入下面的代码)

#!/bin/bash
# nginx Startup script for the Nginx HTTP Server
# it is v.0.0.2 version.
# chkconfig: - 85 15
# description: Nginx is a high-performance web and proxy server.
#             It has a lot of features, but it's not for everyone.
# processname: nginx
# pidfile: /var/run/nginx.pid
# config: /usr/local/nginx/conf/nginx.conf

#nginx程序路径
nginxd=/usr/local/nginx/sbin/nginx

#nginx配置文件路径
nginx_config=/usr/local/nginx/conf/nginx.conf

nginx pid文件的路径，可以在nginx的配置文件中找到
nginx_pid=/var/run/nginx.pid
RETVAL=0
prog="nginx"
# Source function library.
. /etc/rc.d/init.d/functions
# Source networking configuration.
. /etc/sysconfig/network
# Check that networking is up.
[ ${NETWORKING} = "no" ] && exit 0
[ -x $nginxd ] || exit 0
# Start nginx daemons functions.
start() {
if [ -e $nginx_pid ];then
  echo "nginx already running...."
  exit 1
fi
  echo -n $"Starting $prog: "
  daemon $nginxd -c ${nginx_config}
  RETVAL=$?
  echo
  [ $RETVAL = 0 ] && touch /var/lock/subsys/nginx
  return $RETVAL
}
# Stop nginx daemons functions.
stop() {
       echo -n $"Stopping $prog: "
       killproc $nginxd
       RETVAL=$?
       echo
       [ $RETVAL = 0 ] && rm -f /var/lock/subsys/nginx /var/run/nginx.pid
}
# reload nginx service functions.
reload() {
   echo -n $"Reloading $prog: "
   #kill -HUP `cat ${nginx_pid}`
   killproc $nginxd -HUP
   RETVAL=$?
   echo
}
# See how we were called.
case "$1" in
start)
       start
       ;;
stop)
       stop
       ;;
reload)
       reload
       ;;
restart)
       stop
       start
       ;;
status)
       status $prog
       RETVAL=$?
       ;;
*)
       echo $"Usage: $prog {start|stop|restart|reload|status|help}"
       exit 1
esac
exit $RETVAL

:wq  保存并退出

设置文件的访问权限

chmod a+x /etc/init.d/nginx  (a+x ==> all user can execute  所有用户可执行)

这样在控制台就很容易的操作nginx了：查看Nginx当前状态、启动Nginx、停止Nginx、重启Nginx

同样的修改了nginx的配置文件nginx.conf，也可以使用上面的命令重新加载新的配置文件并运行，可以将此命令加入到rc.local文件中，这样开机的时候nginx就默认启动了

vi /etc/rc.local

加入一行

/etc/init.d/nginx start 

保存并退出，下次重启会生效。

将nginx添加为系统服务

chkconfig --add nginx
chkconfig nginx on

对于其他服务也同样适用，比如Mysql,php-fpm等等