The CLOSE statement is used to close a file and break its connection to a unit. The
unit and the file (if it still exists) are then free for re-use in any way. If the specified
unit is not connected to a file the statement has no effect. The general form of the
statement is:
CLOSE( control-list )
where the control-list may contain the following items:
-
UNIT=integer-expression specifies the unit number to close (the same as in the
OPEN statement).
-
STATUS=character-expression specifies the status of the file after closure. The
expression must have a value of either: 'KEEP' for the file to be preserved,
or 'DELETE' for the file to be deleted after closure. The default is
STATUS='KEEP' except for files opened with STATUS='SCRATCH': such files
are always deleted after closure and STATUS='KEEP' is not permitted.
-
IOSTAT=integer-variable and ERR=label are both permitted, as in the OPEN
statement (but not much can go wrong with a CLOSE statement).
