Xdisk Options

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  xdisk -c create  (-m MB  -d days)
  xdisk -c delete 
  xdisk -c expire  -d (-)days 
  xdisk -c size    -m (-)MB 
  xdisk -c cancel 
  xdisk -c query  
  xdisk  or xdisk  -c help
NOTE: Options given in parentheses are optional. If omitted, you
   will get system defaults which are minimal space and maximal
   days. Size and day allocations may be reduced by using a 
   negative sign (-).
To see possible time and space values, use the query option.
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