write | writedata

Immediately write data to a file or write to all current data files

write [<filename> <datasetname0> [<datasetname1> ...]] [<DataFile Options>]

With no arguments, write all files currently in the data file list. Otherwise, write specified data set(s) to <filename>. This is like the create command except a data file is not added to the data file list; it is written immediately.