mysql进程没有启动脚本

#!/bin/bash
# /etc/init.d/mysql

### BEGIN INIT INFO
# Provides:          mysql
# Required-Start:    $local_fs $remote_fs $network $syslog
# Required-Stop:     $local_fs $remote_fs $network $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Start and stop the MySQL database server daemon
# Description:       Control the status of the MySQL database server.
### END INIT INFO

PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/bin/mysqld
NAME=mysql
DESC="MySQL database server"
USER=mysql
PIDFILE=/var/run/mysqld/mysqld.pid
SCRIPTNAME=/etc/init.d/mysql

# Read configuration variable file if it is present
[ -r /etc/default/mysql ] && . /etc/default/mysql

# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.sh

# Define LSB log_* functions.
# Depend on lsb-base (>= 3.0-6) to ensure that this file is present.
. /lib/lsb/init-functions

do_start()
{
    start-stop-daemon --start --quiet --pidfile ${PIDFILE} --exec ${DAEMON} -- $DAEMON_OPTS
    return 0
}

do_stop()
{
    start-stop-daemon --stop --quiet --pidfile ${PIDFILE} --exec ${DAEMON}
    return 0
}

case "$1" in
  start)
    [ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
    do_start
    case "$?" in
        0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
        2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
    esac
    ;;
  stop)
    [ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
    do_stop
    case "$?" in
        0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
        2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
    esac
    ;;
  restart|force-reload)
    log_daemon_msg "Restarting $DESC" "$NAME"
    do_stop
    case "$?" in
      0|1)
        do_start
        case "$?" in
            0) log_end_msg 0 ;;
            1) log_end_msg 1 ;; # Old process is still running
            *) log_end_msg 1 ;; # Failed to start
        esac
        ;;
      *)
        # Failed to stop
        log_end_msg 1
        ;;
    esac
    ;;
  status)
    status_of_proc -p ${PIDFILE} ${DAEMON} ${NAME} && exit 0 || exit $?
    ;;
  *)
    echo "Usage: $0 {start|stop|restart|force-reload|status}" >&2
    exit 1
    ;;
esac

exit 0