| Functions and CALL Routines under UNIX |
Verifies the existence of an external file that is associated
with a fileref.
| Category: |
External Files
|
| UNIX specifics: |
fileref
can be assigned with an environment variable
|
| See: |
FEXIST Function in
SAS Language Reference: Dictionary
|
-
fileref
-
specifies the fileref assigned to the external
file or directory. 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 an
environment
variable. The fileref or the environment variable
that you specify must be enclosed in double quotation marks.
The FEXIST function returns a value of
1 if the external file that is associated with fileref
exists, and a value of 0 if the file does not exist.
Copyright © 2010 by SAS Institute Inc., Cary, NC, USA. All rights reserved.
