| Functions and CALL Routines under UNIX |
Opens a file by directory ID and member name, and returns either
the file identifier or a 0.
| Category: |
External Files
|
| UNIX specifics: |
OPEN modes
|
| See: |
MOPEN Function in
SAS Language Reference: Dictionary
|
|
MOPEN(directory-id,member-name<,open-mode<,record-length<,record-format>>>)
|
Note: This version is a simplified version of the MOPEN function
syntax. For the complete syntax and its explanation, see the MOPEN function
in
SAS Language Reference: Dictionary. ![[cautionend]](../../../../common/61991/HTML/default/images/cautend.gif)
-
open-mode
-
specifies the type of access to the file:
|
A |
APPEND mode allows writing new records
after the current end of the file. |
|
I |
INPUT mode allows reading only (default). |
|
O |
OUTPUT mode defaults to the OPEN
mode specified in the host option in the FILENAME statement or function. If
no host option is specified, it allows writing new records at the beginning
of the file. |
|
S |
Sequential input mode is used for
pipes and other sequential devices such as hardware ports. |
|
U |
UPDATE mode allows both reading and
writing. |
|
W |
Sequential update mode is used for
pipes and other sequential devices such as ports. |
MOPEN returns the identifier for the file,
or 0 if the file could not be opened.
Copyright © 2010 by SAS Institute Inc., Cary, NC, USA. All rights reserved.
