Minecraft Backup
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Utility to backup Minecraft worlds.  Requires python 3.2 <http://python.org>

Usage
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usage: python backup.py [-h] [-a FORMAT] [-f FORMAT] worldDir backupDir [worldName [worldName ...]]

positional arguments:
  worldDir              The path to the directory containing the worlds.
  backupDir             The path to the directory where the backups will be
                        written.
  worldName             The worlds to backup. If no worlds are specified, all
                        worlds in worldDir are backed up.

optional arguments:
  -h, --help            show this help message and exit
  -a FORMAT, --archive-format FORMAT
                        The archive format to use. Supported formats are zip,
                        tar.gz, and tar.bz2. Default is tar.gz
  -f FORMAT, --filename-format FORMAT
                        The format of the backup world which may be a relative
                        path to backupDir. {0} is the current time, {1} is the
                        world name, and {2} is the archive format extension.
                        Default is {0:%Y}-{0:%B}-{0:%d}/{1}-{0:%H%M%S}.{2}


Filename Format
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See http://docs.python.org/library/string.html#format-string-syntax for more information on the format string.