FTPFileExists

Hello,

I've got a script that uses the FTPFileExists command. When it finds a specific file, I delete the file using FTPFileDelete.
The problem is, FTPFileExists is returning a "true" value even though the file does not exist. When FTPFileDelete executes, it doesn't find the file in question and the job goes into error.

I can put in some garbage name for FTPFileExists and it'll still return a true value.

I've used this command ok in the past, I don't know why it's behaving this way now. Any ideas?

This is actually a known issue, when 24x7 is used with some types of FTP servers, the FTPFileExists always returns true for any file in non-current directory.

One of the workarounds for that issue is to use FTPDir which appears to work reliable. If FTPDir returns an empty string then the file doesn't exists.

What I'm trying to do is write a script that checks an FTP server every 5 mins for a "DAILY" file, and if it's there, deletes it and kicks off some other jobs.

I can use the FTPDir command and use the filemask "DAILY", but if the file is not there then it goes into error.

Should I just get the whole directory list (it's pretty long) and parse it to find this file called "DAILY"?

Is this is best/only way because FTPFileExists is buggy?

You can do the following

	Code:
	OnErrorResumeNext FileDir ... parameters here ... OnErrorStop

Thanks for your help. I've got the final logic down now. Here's my sample testing code. For any other users experiencing the same problem. I'm sure it's not the most efficient, but it works.

Dim a, string, ""
Dim b, string, ""
Dim test, boolean

OnErrorResumeNext
FTPDir ( "ftpserver.com", "username", "password", "DAILY", a )

IsEqual ( a, b, test )
If ( test, Leave, Execute1 )

Execute1:
Exit

Leave:
Exit

If the file "DAILY" is not there, the script exits gracefully. If the "DAILY" file is there, then we can start executing other commands because we know it exists.

I suggest to change it as below

	Code:
	Dim files, string Dim not_found, boolean OnErrorResumeNext FTPDir ( "ftpserver.com", "username", "password", "DAILY", files ) OnErroStop IsEqual ( files, "", not_found ) IfThen( not_found, Done) .. do here what is needed ... Done:

I got one thing wrong in my sample code and one peculiar thing I noticed with 24x7.

In the FTPDir statement, you need to use a wildcard to maintain a NULL value. So for example:

FTPDir ( "ftpserver.com", "username", "password", "DAIL?", files )

That way the variable "files", will remain NULL.
If you use the specific filename like "DAILY", 24x7 will set the variable "files" to the value "DAILY: No such file or directory".

FTPFileExists is supposed to be working correctly in the latest release 3.4.27

FTPFileExists is supposed to be working correctly in the latest release 3.4.27