| Functions and CALL Routines under UNIX |
Verifies whether a fileref has been assigned for the current SAS
session.
| Category: |
External Files
|
| UNIX specifics: |
fileref
can be assigned with an environment variable
|
| See: |
FILEREF Function in
SAS Language Reference: Dictionary
|
-
fileref
-
specifies the fileref assigned to be validated.
In a DATA step, fileref can be a character expression,
a string enclosed in quotation marks, or a DATA step variable whose value
contains the fileref. In a macro, fileref can
be any expression.
Under UNIX, fileref can
also be a UNIX environment variable. The fileref
or the environment variable you specify must be enclosed in double quotation
marks.
A negative return code indicates that
the fileref exists, but the physical file associated with the fileref does
not exist. A positive value indicates that the fileref is not assigned. A
value of zero indicates that the fileref and external file both exist.
See FILENAME Function: UNIX for more
information.
Copyright © 2010 by SAS Institute Inc., Cary, NC, USA. All rights reserved.
