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警告

因为这是Wiki的一个条目,可以在任何时间内被任何人编辑,因此建议你不要完全使用这个脚本,而是将其当作编写脚本的指导手册看待。


这是一个可供参考的Minecraft启动脚本示例,并使用GNU/Linux distros对脚本进行维护。

先决条件[]

  1. 必须安装Screen包。如果不安装Screen,服务器进程将在断开服务器连接后被系统杀掉。

CentOS和基于Red Hat®系统的命令如下:

yum install screen

基于Debian 系统(如 Ubuntu 等)的命令如下:

apt-get install screen

下载[]

要使用wget方法,运行下列脚本。(注意脚本需要修改 - 更改 WORLD、MCPATH 和 BACKUPPATH 变量)

重要:如果你使用wget方法,每行的第一个字符必须是空格,否则脚本不会工作,并且update-rc.d会输出错误。如果出现了,你不得不移除每行所有的前导空格。(注意不要删除过多的空格!)

wget -O minecraft "http://minecraft.gamepedia.com/Tutorials/Server_startup_script/Script?action=raw"
 #!/bin/bash
 # /etc/init.d/minecraft
 # version 0.4.1 2015-05-07 (YYYY-MM-DD)
 #
 ### BEGIN INIT INFO
 # Provides:   minecraft
 # Required-Start: $local_fs $remote_fs screen-cleanup
 # Required-Stop:  $local_fs $remote_fs
 # Should-Start:   $network
 # Should-Stop:    $network
 # Default-Start:  2 3 4 5
 # Default-Stop:   0 1 6
 # Short-Description:    Minecraft server
 # Description:    Starts the minecraft server
 ### END INIT INFO

 #Settings
 SERVICE='minecraft_server.jar'
 SCREENNAME='minecraft_server'
 OPTIONS='nogui'
 USERNAME='minecraft'
 WORLD='world'
 MCPATH='/home/minecraft'
 BACKUPPATH='/media/remote.share/minecraft.backup'
 MAXHEAP=2048
 MINHEAP=1024
 HISTORY=1024
 CPU_COUNT=1
 INVOCATION="java -Xmx${MAXHEAP}M -Xms${MINHEAP}M -XX:+UseConcMarkSweepGC \
 -XX:+CMSIncrementalPacing -XX:ParallelGCThreads=$CPU_COUNT -XX:+AggressiveOpts \
 -jar $SERVICE $OPTIONS" 

 ME=`whoami`
 as_user() {
   if [ "$ME" = "$USERNAME" ] ; then
     bash -c "$1"
   else
     su - "$USERNAME" -c "$1"
   fi
 }

 mc_start() {
   if  pgrep -u $USERNAME -f $SERVICE > /dev/null
   then
     echo "$SERVICE is already running!"
   else
     echo "Starting $SERVICE..."
     cd $MCPATH
     as_user "cd $MCPATH && screen -h $HISTORY -dmS ${SCREENNAME} $INVOCATION"
     sleep 7
     if pgrep -u $USERNAME -f $SERVICE > /dev/null
     then
       echo "$SERVICE is now running."
     else
       echo "Error! Could not start $SERVICE!"
     fi
   fi
 }

 mc_saveoff() {
   if pgrep -u $USERNAME -f $SERVICE > /dev/null
   then
     echo "$SERVICE is running... suspending saves"
     as_user "screen -p 0 -S ${SCREENNAME} -X eval 'stuff \"say SERVER BACKUP STARTING. Server going readonly...\"\015'"
     as_user "screen -p 0 -S ${SCREENNAME} -X eval 'stuff \"save-off\"\015'"
     as_user "screen -p 0 -S ${SCREENNAME} -X eval 'stuff \"save-all\"\015'"
     sync
     sleep 10
   else
     echo "$SERVICE is not running. Not suspending saves."
   fi
 }

 mc_saveon() {
   if pgrep -u $USERNAME -f $SERVICE > /dev/null
   then
     echo "$SERVICE is running... re-enabling saves"
     as_user "screen -p 0 -S ${SCREENNAME} -X eval 'stuff \"save-on\"\015'"
     as_user "screen -p 0 -S ${SCREENNAME} -X eval 'stuff \"say SERVER BACKUP ENDED. Server going read-write...\"\015'"
   else
     echo "$SERVICE is not running. Not resuming saves."
   fi
 }

 mc_stop() {
   if pgrep -u $USERNAME -f $SERVICE > /dev/null
   then
     echo "Stopping $SERVICE"
     as_user "screen -p 0 -S ${SCREENNAME} -X eval 'stuff \"say SERVER SHUTTING DOWN IN 10 SECONDS. Saving map...\"\015'"
     as_user "screen -p 0 -S ${SCREENNAME} -X eval 'stuff \"save-all\"\015'"
     sleep 10
     as_user "screen -p 0 -S ${SCREENNAME} -X eval 'stuff \"stop\"\015'"
     sleep 7
   else
     echo "$SERVICE was not running."
   fi
   if pgrep -u $USERNAME -f $SERVICE > /dev/null
   then
     echo "Error! $SERVICE could not be stopped."
   else
     echo "$SERVICE is stopped."
   fi
 } 

 mc_update() {
   if pgrep -u $USERNAME -f $SERVICE > /dev/null
   then
    echo "$SERVICE is running! Will not start update."
   else
     as_user "cd $MCPATH && wget -q -O $MCPATH/versions http://s3.amazonaws.com/Minecraft.Download/versions/versions.json"
        snap=`awk -v linenum=3 'NR == linenum {print; exit}' "$MCPATH/versions"`
        snapVersion=`echo $snap | awk -F'\"' '{print $4}'`
        re=`awk -v linenum=4 'NR == linenum {print; exit}' "$MCPATH/versions"`
        reVersion=`echo $re | awk -F'\"' '{print $4}'`
        as_user "rm $MCPATH/versions"
        if [ "$1" == "snapshot" ]; then
        MC_SERVER_URL=http://s3.amazonaws.com/Minecraft.Download/versions/$snapVersion/minecraft_server.$snapVersion.jar
        else
        MC_SERVER_URL=http://s3.amazonaws.com/Minecraft.Download/versions/$reVersion/minecraft_server.$reVersion.jar
        fi
     as_user "cd $MCPATH && wget -q -O $MCPATH/minecraft_server.jar.update $MC_SERVER_URL"
     if [ -f $MCPATH/minecraft_server.jar.update ]
     then
       if `diff $MCPATH/$SERVICE $MCPATH/minecraft_server.jar.update >/dev/null`
       then 
         echo "You are already running the latest version of $SERVICE."
       else
         as_user "mv $MCPATH/minecraft_server.jar.update $MCPATH/$SERVICE"
         echo "Minecraft successfully updated."
       fi
     else
       echo "Minecraft update could not be downloaded."
     fi
   fi
 }

 mc_backup() {
    mc_saveoff
   
     NOW=`date "+%Y-%m-%d_%Hh%M"`
    BACKUP_FILE="$BACKUPPATH/${WORLD}_${NOW}.tar"
    echo "Backing up minecraft world..."
    #as_user "cd $MCPATH && cp -r $WORLD $BACKUPPATH/${WORLD}_`date "+%Y.%m.%d_%H.%M"`"
    as_user "tar -C \"$MCPATH\" -cf \"$BACKUP_FILE\" $WORLD"

    echo "Backing up $SERVICE"
    as_user "tar -C \"$MCPATH\" -rf \"$BACKUP_FILE\" $SERVICE"
    #as_user "cp \"$MCPATH/$SERVICE\" \"$BACKUPPATH/minecraft_server_${NOW}.jar\""

    mc_saveon

    echo "Compressing backup..."
    as_user "gzip -f \"$BACKUP_FILE\""
    echo "Done."
 }

 mc_command() {
   command="$1";
   if pgrep -u $USERNAME -f $SERVICE > /dev/null
   then
     pre_log_len=`wc -l "$MCPATH/logs/latest.log" | awk '{print $1}'`
     echo "$SERVICE is running... executing command"
     as_user "screen -p 0 -S ${SCREENNAME} -X eval 'stuff \"$command\"\015'"
     sleep .1 # assumes that the command will run and print to the log file in less than .1 seconds
     # print output
     tail -n $[`wc -l "$MCPATH/logs/latest.log" | awk '{print $1}'`-$pre_log_len] "$MCPATH/logs/latest.log"
   fi
 }

 #Start-Stop here
 case "$1" in
   start)
     mc_start
     ;;
   stop)
     mc_stop
     ;;
   restart)
     mc_stop
     mc_start
     ;;
   update)
     mc_stop
     mc_backup
     mc_update $2
     mc_start
     ;;
   backup)
     mc_backup
     ;;
   status)
     if pgrep -u $USERNAME -f $SERVICE > /dev/null
     then
       echo "$SERVICE is running."
     else
       echo "$SERVICE is not running."
     fi
     ;;
   command)
     if [ $# -gt 1 ]; then
       shift
       mc_command "$*"
     else
       echo "Must specify server command (try 'help'?)"
     fi
     ;;

   *)
   echo "Usage: $0 {start|stop|update|backup|status|restart|command \"server command\"}"
   exit 1
   ;;
 esac

 exit 0

需求[]

安装[]

使用你喜欢的编辑器在/etc/init.d/目录里创建minecraft的文件,将上面的内容粘贴到那个文件里。

修改USERNAME和MCPATH - 你安装时要使用的变量。如果你使用Wrapper Script,更改INVOCATION来开始执行而不是直接启动服务器。

确保你新创建的文件得到了所需的权限,你可以通过运行下列命令设置权限:

chmod a+x /etc/init.d/minecraft

然后运行(在基于Debian系统的发行版上)

update-rc.d minecraft defaults

启动 Debian 6.0。如果使用dependency-based启动开启,则使用insserv命令替代。如果一切正常,insserv将不会有任何的输出。如果你想确认哪个地方出错,检查$?里面的错误代码。

insserv minecraft

在CentOs和RHEL(Redhat enterprise Linux)

你将会在systemd里向chkconfig列表的chkconfig启动脚本管理器添加过程。

chkconfig --add minecraft

要检查是否已正确添加过程,使用ntsysv命令,然后一直滚动,直到你看见有minecraft过程。如果你看不见,重复chkconfig命令,然后加上一些需要的符号链接。

注:你的系统更多时候会警告你脚本不能满足所有的需求,但是脚本仍然会工作。

你也可以在crontab里设置一个条目来备份服务器。

该示例crontab会每隔半小时进行备份:


  • 使用你想运行的用户账户,运行:
crontab -e

然后加上这个:

0,30 * * * * /etc/init.d/minecraft backup

如果因为你不知道如何使用vi而造成上面的效果不佳,尝试:

VISUAL=/usr/bin/nano crontab -e

卸载[]

(基于Debian的GNU/Linux发行版)

update-rc.d -f  minecraft remove

(在 CentOs/RHEL 里)

chkconfig --del minecraft

用法[]

在多数系统里,脚本可以通过命令运行。“(command)”为“stop”、“start”、“restart”命令,还可以为这些命令指定支持的参数。

/etc/init.d/minecraft (command)

在多数的RedHat或Debian分支发行版系统,可用“service”命令,其运行命令为:

service minecraft (command)

查看屏幕,使用:

screen -r

退出屏幕,使用:

CTRL+a+d

参考[]

附加信息[]

如果你想查看实时日志输出,在服务器目录里使用下列命令。

tail -f logs/latest.log

可选的服务器启动脚本[]

下列脚本与上面的脚本都包含了相同的功能,但是下面的脚本还带有了更多有用的功能:

语言

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