Here is one approach.
OPEN.DIR.FILE:* Open sequential output file
DIR.FILE = "_PH_"
OPEN DIR.FILE TO F.DIR.FILE THEN
DELETE F.DIR.FILE, OUTPUT.NAME
CLOSE F.DIR.FILE
OPENSEQ DIR.FILE, OUTPUT.NAME TO F.DIR.FILE ELSE
IF STATUS() THEN
ABORT.FLAG = TRUE
MSG = "Can't open ":DIR.FILE:", ":OUTPUT.NAME:" for output."
END
END
END ELSE
ABORT.FLAG = TRUE
MSG = "Can't open ":DIR.FILE:"!"
END
RETURN
David A. Green
(480) 813-1725
DAG Consulting
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Al DeWitt
Sent: Wednesday, September 08, 2010 3:55 PM
To: [email protected]
Subject: [U2] Sequential Files Question
Unidata 7.1.20
I've never dealt with sequential files, but I have a need to output
records to a text file. Each record will be a series of fixed-length
fields. Each file will need to be created at the time of opening. The
destination will be a Windows folder on one of our servers. I will be
using OPENSEQ to open the file. However, since each file needs to be
created at time of opening what do I use to create the file? My reading
of OPENSEQ doesn't indicate that it will create it automatically if it
doesn't exist.
Thanks.
Al DeWitt
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