script for backing up minecraft save

mc_backup.sh

#!/bin/bash

diff=30001 # save for 3 days
uuid=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Now=$(date "+%Y%m%d%H%M")
tar -zcvf ~/mcbackup/backups/$Now-$uuid.tar.gz --exclude=$uuid/plugins/dynmap -C/opt/mcsmanager/daemon/data/InstanceData/ $uuid/
for FILE in `ls ~/mcbackup/backups`
do
        # filename=${FILE%%.*}
        filename=${FILE:0:12}
        time_diff=`expr $Now - $filename`
        if [ $time_diff -gt $diff ]
        then
                echo $FILE
                rm ~/mcbackup/backups/$FILE
        fi
done