VBS ftp command download latest uploaded file

Posted on 2010-09-17
Last Modified: 2012-05-10
Dear All:

Can any one provide some ideas how can i develop a vbs scripts with download the new file from ftp server?

i have developed some scripts but i only can download all file instead of download only latest file in ftp server.

Many thanks
Function FTPDownload(sSite, sUsername, sPassword, sLocalPath, sRemotePath, sRemoteFile)

	Const OpenAsDefault = -2

	Const FailIfNotExist = 0

	Const ForReading = 1

	Const ForWriting = 2


	Set oFTPScriptFSO = CreateObject("Scripting.FileSystemObject")

	Set oFTPScriptShell = CreateObject("WScript.Shell")

	sRemotePath = Trim(sRemotePath)

	sLocalPath = Trim(sLocalPath)


	'----------Path Checks---------

	'Here we will check the remote path, if it contains

	'spaces then we need to add quotes to ensure

	'it parses correctly.

	If InStr(sRemotePath, " ") > 0 Then

		If Left(sRemotePath, 1) <> """" And Right(sRemotePath, 1) <> """" Then

			sRemotePath = """" & sRemotePath & """"

		End If

	End If


	'Check to ensure that a remote path was

	'passed. If it's blank then pass a "\"

	If Len(sRemotePath) = 0 Then

		'Please note that no premptive checking of the

		'remote path is done. If it does not exist for some

		'reason. Unexpected results may occur.

		sRemotePath = "\"

	End If


	'If the local path was blank. Pass the current

	'working direcory.

	If Len(sLocalPath) = 0 Then

		sLocalpath = oFTPScriptShell.CurrentDirectory

	End If


	If Not oFTPScriptFSO.FolderExists(sLocalPath) Then

		'destination not found

		FTPDownload = "Error: Local Folder Not Found."

		Exit Function

	End If


	sOriginalWorkingDirectory = oFTPScriptShell.CurrentDirectory

	oFTPScriptShell.CurrentDirectory = sLocalPath

	'--------END Path Checks---------


	'build input file for ftp command

	sFTPScript = sFTPScript & "USER " & sUsername & vbCRLF

	sFTPScript = sFTPScript & sPassword & vbCRLF

	sFTPScript = sFTPScript & "cd " & sRemotePath & vbCRLF

	sFTPScript = sFTPScript & "ascii" & vbCRLF

	sFTPScript = sFTPScript & "prompt n" & vbCRLF

	sFTPScript = sFTPScript & "mget " & sRemoteFile & vbCRLF

	sFTPScript = sFTPScript & "quit" & vbCRLF & "quit" & vbCRLF & "quit" & vbCRLF

	sFTPTemp = oFTPScriptShell.ExpandEnvironmentStrings("%TEMP%")

	sFTPTempFile = sFTPTemp & "\" & oFTPScriptFSO.GetTempName

	sFTPResults = sFTPTemp & "\" & oFTPScriptFSO.GetTempName

	'Write the input file for the ftp command

	'to a temporary file.

	Set fFTPScript = oFTPScriptFSO.CreateTextFile(sFTPTempFile, True)



	Set fFTPScript = Nothing 

	oFTPScriptShell.Run "%comspec% /c FTP -n -s:" & sFTPTempFile & " " & sSite & " > " & sFTPResults, 0, TRUE


	Wscript.Sleep 1000


	'Check results of transfer.

	Set fFTPResults = oFTPScriptFSO.OpenTextFile(sFTPResults, ForReading, FailIfNotExist, OpenAsDefault)

	sResults = fFTPResults.ReadAll




	'oFTPScriptFSO.DeleteFile (sFTPResults)


	'Wscript.Echo sResults

	If InStr(sResults, "226 Transfer complete.") > 0 Then

		FTPDownload = True

	ElseIf InStr(sResults, "File not found") > 0 Then

		FTPDownload = "Error: File Not Found"

	ElseIf InStr(sResults, "cannot log in.") > 0 Then

		FTPDownload = "Error: Login Failed."


		FTPDownload = "Error: Unknown."

	End If


	Set oFTPScriptFSO = Nothing

	Set oFTPScriptShell = Nothing

End Function

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Question by:simonlai
  • 2
LVL 32

Accepted Solution

Robberbaron (robr) earned 500 total points
ID: 33709387
the builtin FTP client is hard to script. It has no interactive options; there are some freeware one that do but cant find the one I used a few years ago.

Using the builtin FTP client:

i think you will have to capture a ftp DIR command to a file, parse that to determine which files to retrieve based upon displayed date/time, and then do the retrival.
this will require 2 connections but that is probably not a big problem.  You have done the second conenction

user ; pwd ; dir "source folder" "c:\localtempfile.txt" ; quit

user; pwd ; cd "source folder" ; mget file1 file2 file3 file4

(or use multiple mget to make it easier to script many files)
Displays a list of a remote directory's files and subdirectories. See also mdir, which can list multiple directories.
 Syntax: dir [remote-directory] [local-file]   Parameter(s):
 remote-directory -  Specifies the directory for which you want to see a listing. If no  directory is specified, the current working directory on the remote  computer is used.
 local-file -  Specifies a local file to store the listing. If not specified, output is displayed on the screen.  

Author Comment

ID: 33713568
robberbaron, many thanks for our ideas....

i manage to do it...

once again...thanks

Author Comment

ID: 33713569
*our => ur

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