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Subject: how to check if a file exists using

Original Message

Name: Mauricio_Barrero
Date: December 13, 2004 at 09:27:58 Pacific
Subject: how to check if a file exists using
OS: Alpha 7.2
CPU/Ram: 600Mhz 2G

Comment:

Hi all all, I'm new to the board and I have a quick question: how can I check If a file exists using a conditional (IF..)
I've seen that I could use OPEN/error= and put an error label but this not very efficient for what I need. Any other easier way? thanks a lot

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Response Number 1

Name: KIRBY2000
Date: December 13, 2004 at 11:57:00 Pacific
Subject: how to check if a file exists using

Reply: (edit)

Try the F$SEARCH lexical function.
type:
$ HELP LEXICAL F$SEARCH
example:
$ START:
$ FILE = F$SEARCH("SYS$SYSTEM:*.EXE")
$ IF FILE .EQS. "" THEN EXIT
$ SHOW SYMBOL FILE
$ GOTO START
This command procedure displays the file specifications of the latest version of all .EXE files in the SYS$SYSTEM directory.
(Only the latest version is returned because an asterisk (*) wildcard character is not used as the version number.)
The filespec argument SYS$SYSTEM:*.EXE is surrounded by quotation marks (" ")
because it is a character string expression.
Thanks, Glen

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Response Number 2

Name: Mauricio_Barrero
Date: December 13, 2004 at 13:22:35 Pacific
Subject: how to check if a file exists using

Reply: (edit)

Hi Glen thanks for the help!

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