FILEEXIST Function: Windows
Verifies the existence of an external file by its
physical name.
| Category: |
External Files |
| Windows specifics: |
filename can be assigned with an environment variable
|
| See: |
FILEEXIST Function in SAS Functions and CALL Routines: Reference |
Syntax
Required Argument
- 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 Windows,
filename can also be an environment variable.
The filename or environment variable that you specify must be enclosed
in quotation marks.
Note: The FILEEXIST function can also verify a directory’s
existence.
Details
FILEEXIST returns 1
if the external file exists and 0 if the external file does not exist.