FTPFileExist (Function)

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Note
Time-out
Rights of users
Relative and absolute path

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Standard FTP functions

FTPFileExist (Function)

In french: FTPFichierExiste

Checks the existence of a file on an FTP server (File Transfer Protocol).

Versions 22 and later

This function is now available in Android Widget mode.

This function is now available for the Android applications.

This function is now available for the Java applications.

New in version 22

This function is now available in Android Widget mode.

This function is now available for the Android applications.

This function is now available for the Java applications.

This function is now available in Android Widget mode.

This function is now available for the Android applications.

This function is now available for the Java applications.

Example

Info(FTPFileExist(nSessionID, "/Document/File.txt"))

Syntax

<Result> = FTPFileExist(<Connection Identifier> , <File Name>)

<Result>: Boolean

True if the file exists,
False otherwise. To find out the error details, use ErrorInfo associated with the errMessage constant.

<Connection Identifier>: Integer

Connection identifier, returned by FTPConnect.

<File Name>: Character string (with quotes)

Name and full (or relative) path of file to use. The different path sections are separated by "slashes" ("/").

Remarks

Note

The current element is not modified.

Time-out

By default, all the FTP functions fail if the FTP server does not respond within 20 seconds. This time-out can be modified by FTPConnect when connecting to the FTP server.

Rights of users

Only a user who has read rights on the FTP server can get information about the files or the directories found on an FTP server. In most cases, the read rights are granted to the "anonymous" users.

Relative and absolute path

The notions of relative path and absolute path are very important in an FTP application.

A path starting with a slash is considered as being an absolute path: it is the path in relation to the root of the FTP server (parameter specific to the server).
ex: /ad/user/JULIA
A path not starting with a slash is considered as being a relative path, which means a path given in relation to the current directory. This current directory can be returned or modified by FTPCurrentDir.

When connecting to an FTP site, the initial directory (the "home directory" of the user) is not necessarily found at the root of the FTP server. Therefore, we recommend that you use relative paths.

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