nginx在centos等linux系统下的启动脚本：

#! /bin/bash
# Startup script for the Nginx HTTP Server
# chkconfig: - 85 15
# description: Startup script for the Nginx HTTP Server
# processname: nginx
# pidfile: /var/run/nginx.pid
# config: /usr/local/nginx-0.8/conf/nginx.conf

nginxd=/usr/local/nginx-0.8/sbin/nginx
nginx_config=/usr/local/nginx-0.8/conf/nginx.conf
nginx_pid=/var/run/nginx.pid

RETVAL=0
prog="nginx"

# Source function library.
. /etc/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 $nginx_pid
}

# reload nginx service functions.
reload() {
    echo -n "Reloading $prog: "
    killproc $nginxd -HUP
    RETVAL=$?
    echo
    [ $RETVAL = 0 ]
}

# 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