用initd服务化nginx，支持centos6,7和ubuntu

vim /etc/init.d/nginx

#! /bin/bash
#2019-02-12  

PATH=/data/sbin:/data/bin:/sbin:/bin:/usr/sbin:/usr/bin
NAME=nginx
NGINX_BIN=/data/nginx/sbin/$NAME
CONFIGFILE=/data/nginx/conf/$NAME.conf
PIDFILE=/data/nginx/logs/$NAME.pid
if [ -s /usr/sbin/ss ]; then
    StatBin=/usr/sbin/ss
else
    StatBin=/usr/bin/netstat
fi


case "$1" in
    start)
        echo -n "Starting $NAME... "

        if $StatBin -tnpl | grep -q nginx;then
            echo "$NAME (pid `pidof $NAME`) already running."
            exit 1
        fi

        $NGINX_BIN -c $CONFIGFILE

        if [ "$?" != 0 ] ; then
            echo " failed"
            exit 1
        else
            echo " done"
        fi
        ;;

    stop)
        echo -n "Stoping $NAME... "

        if ! $StatBin -tnpl | grep -q nginx; then
            echo "$NAME is not running."
            exit 1
        fi

        $NGINX_BIN -s stop

        if [ "$?" != 0 ] ; then
            echo " failed. Use force-quit"
            $0 force-quit
        else
            echo " done"
        fi
        ;;

    status)
        if $StatBin -tnpl | grep -q nginx; then
            PID=`pidof nginx`
            echo "$NAME (pid $PID) is running..."
        else
            echo "$NAME is stopped."
            exit 0
        fi
        ;;

    force-quit|kill)
        echo -n "Terminating $NAME... "

        if ! $StatBin -tnpl | grep -q nginx; then
            echo "$NAME is is stopped."
            exit 1
        fi

        kill `pidof $NAME`

        if [ "$?" != 0 ] ; then
            echo " failed"
            exit 1
        else
            echo " done"
        fi
        ;;

    restart)
        $0 stop
        sleep 1
        $0 start
        ;;

    reload)
        echo -n "Reload service $NAME... "

        if $StatBin -tnpl | grep -q nginx; then
            $NGINX_BIN -s reload
            echo " done"
        else
            echo "$NAME is not running, can't reload."
            exit 1
        fi
        ;;

    configtest)
        echo -n "Test $NAME configure files... "

        $NGINX_BIN -t
        ;;

    *)
        echo "Usage: $0 {start|stop|restart|reload|status|configtest|force-quit|kill}"
        exit 1
        ;;

esac

chmod +x /etc/init.d/nginx
chkconfig nginx on