Supported commands are:

get <key> - retrieves an entry (by key) from the grid
put <key> <value> - puts a new entry into the grid
remove <key> - removes an entry (by key) from the grid
size - returns the size of the grid
clear - removes all mapping in the grid
map - returns the keys and associated values contained by the grid
keys - returns the keys contained by the grid
values - returns the values contained by the grid
containsKey <key> - indicates if the given key is contained by the grid
containsValue <value> - indicates if the given value is contained by the grid

query <query> - executes a query on the grid

help - this info
exit - this node exists