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- #!/bin/bash
- # /etc/init.d/minecraft
- # version 0.3.10 2013-11-28 (YYYY-MM-DD)
- # Last modification by Kreezxil @ http://nobabies.info
- # To make this intellegent add an entry into your /etc/cron.hourly/
- # to call this file with the required parameters.
- # If minecraft is running this script will stop, if minecraft is not, it will start your server
- # back up using the parameters as defined in the section settings below.
- #
- # See http://pastebin.com/AddvyRKF for my cron script
- ### BEGIN INIT INFO
- # Provides: minecraft
- # Required-Start: $local_fs $remote_fs
- # Required-Stop: $local_fs $remote_fs
- # Should-Start: $network
- # Should-Stop: $network
- # Default-Start: 2 3 4 5
- # Default-Stop: 0 1 6
- # Short-Description: Minecraft server
- # Description: Starts the minecraft server
- ### END INIT INFO
- #Settings
- SERVICE='ftbserver.jar'
- OPTIONS='nogui'
- USERNAME='root'
- WORLD='bupkis'
- MCPATH='/root/Unleashed'
- BACKUPPATH='/root/minecraft.backup'
- SESSIONNAME='unleashed'
- MAXHEAP=3584
- MINHEAP=1024
- HISTORY=128
- CPU_COUNT=4
- INVOCATION="java -Xmx${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 $SESSIONNAME $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 $SESSIONNAME -X eval 'stuff \"say SERVER BACKUP STARTING. Server going readonly...\"\015'"
- as_user "screen -p 0 -S $SESSIONNAME -X eval 'stuff \"save-off\"\015'"
- as_user "screen -p 0 -S $SESSIONNAME -X eval 'stuff \"save-all\"\015'"
- sync
- sleep 10
- else
- echo "$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 $SESSIONNAME -X eval 'stuff \"save-on\"\015'"
- as_user "screen -p 0 -S $SESSIONNAME -X eval 'stuff \"say SERVER BACKUP ENDED. Server going read-write...\"\015'"
- else
- echo "$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 $SESSIONNAME -X eval 'stuff \"say SERVER SHUTTING DOWN IN 10 SECONDS. Saving map...\"\015'"
- as_user "screen -p 0 -S $SESSIONNAME -X eval 'stuff \"save-all\"\015'"
- sleep 10
- as_user "screen -p 0 -S $SESSIONNAME -X eval 'stuff \"stop\"\015'"
- sleep 30
- else
- echo "$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
- MC_SERVER_URL=http://s3.amazonaws.com/MinecraftDownload/launcher/minecraft_server.jar?v=`date | sed "s/[^a-zA-Z0-9]/_/g"`
- 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/server.log" | awk '{print $1}'`
- echo "$SERVICE is running... executing command"
- as_user "screen -p 0 -S minecraft -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/server.log" | awk '{print $1}'`-$pre_log_len] "$MCPATH/server.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
- 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
- [[Category:Guides]]
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