| Functions and CALL Routines under UNIX |
Verifies the existence of an external file by its physical name.
| Category: |
External Files
|
| UNIX specifics: |
filename
can be assigned with an environment variable
|
| See: |
FILEEXIST Function in
SAS Language Reference: Dictionary
|
-
filename
-
specifies a fully qualified physical filename
of the external file. In a DATA step, filename
can be a character expression, a string in quotation marks, or a DATA step
variable. In a macro, filename can be any expression.
Under UNIX, filename can
also be an environment variable. The filename
or the environment variable that you specify must be enclosed in double quotation
marks.
FILEEXIST returns 1 if the external file
exists, and 0 if the external file does not exist.
You can check for the existence of a directory by
using FILEEXIST.
Copyright © 2010 by SAS Institute Inc., Cary, NC, USA. All rights reserved.
