nginx启动脚本撰写

#!/bin/sh
#chkconfig: 2345 85 15
# description: nginx is a World Wide Web server. It is used to serve
function start(){
        netstat -tunlp | grep nginx > /dev/null
        if [ $? -eq 0 ]; then
                echo "nginx is already starting"
        else
                /usr/local/nginx/sbin/nginx
        fi
}

function stop(){
        netstat -tunlp | grep nginx > /dev/null
        if [ $? -eq 0 ]; then
                /usr/local/nginx/sbin/nginx -s stop
        else
                echo "nginx is already stopping"
        fi
}

function reload(){
        netstat -tunlp | grep nginx > /dev/null
        if [ $? -eq 0 ]; then
                /usr/local/nginx/sbin/nginx -s reload
        else
                echo "nginx is not running"
        fi
}

case $1 in
        start)
                start
                ;;
        stop)
                stop
                ;;
        restart)
                stop
                start
                ;;
        reload)
                reload
                ;;
        *)
                echo "Usg:$0 start|stop|restart"
esac

chkconfig --list 列出所以服务启动情况
chkconfig --add nginx 将nginx加入开机启动项
service nginx start

说明：# chkconfig: - 85 15
开启模式：- 代表所有运行模式不开启，可以修改开启模式为2345
开启顺序：值越小，优先权越高，如果A服务需要依赖B服务启动，那A的开启顺序值比B服务小，代表A服务先启动
关闭顺序：值越小，优先权越高，与开启顺序相反，先将B服务关闭再将A服务关闭