The CLOSE procedure closes the file units specified as arguments. All open files are also closed when IDL exits.

Calling Sequence
CLOSE[,Unit1, ..., Unitn]

Arguments
Uniti  The IDL file units to close.

Keywords

ALL Set this keyword to close all open file units. In addition, any file units that were allocated via GET_LUN are freed.

FILE Set this keyword to close all file units from 1 to 99. File units greater than 99, which are associated with the GET_LUN and FREE_LUN procedures, are not affected.

Example
If file units 1 and 3 are open, they can both be closed at the same time by entering the command:

CLOSE, 1, 3

See Also   OPEN