UMASK — Set the file creation mask#
- 
UMASK(MASK)#
 Sets the file creation mask to
MASK. If called as a function, it returns the old value. If called as a subroutine and argumentOLDif it is supplied, it is set to the old value. Seeumask(2).- Parameters:
 MASK – Shall be a scalar of type
INTEGER.OLD – (Optional) Shall be a scalar of type
INTEGER.
- Standard:
 GNU extension
- Class:
 Subroutine, function
- Syntax:
 CALL UMASK(MASK [, OLD]) OLD = UMASK(MASK)