VBScript - Create text file using folder name during loop - vbscript

Question

Problem:
This script below is looping through 4+ million files and retrieving file property information to determine what can be purged. The current process is already using 20+GB of RAM and is only half finished.
I've been creating a large batch file to write each subfolders contents to a new text file. This isn't practical because its time consuming and this is the first of several servers that I will be running this process on.
Questions:
-Is it possible to create a new file to write to based on the subfolder loop? (using the object property in place of the file doesn't appear to do the trick)
-Or is is possible to write the contents to the file, then clear the previous data from my temporary memory?
Set objFSO = CreateObject("Scripting.FileSystemObject")
objStartFolder = "C:\Test"
Set objFolder = objFSO.GetFolder(objStartFolder)
Set colFiles = objFolder.Files
For Each objFile in colFiles
On Error Resume Next
If Err Then
MyFile.Write "Error accessing " & objFile & ": " & Err.Description & vbCrLf
Err.Clear
Else
Q="""" 'Wrap quotes around string
strFilePath = Q & objFile.Path & Q
strFileName = Q & objFile.Name & Q
strFileSize = objFile.Size
strFileType = Q & objFile.Type & Q
strFileDateCreated = objFile.DateCreated
strFileDateLastAccessed = objFile.DateLastAccessed
strFileDateLastModified = objFile.DateLastModified
Set objWMIService = GetObject("winmgmts:")
Set objFileSecuritySettings = _
objWMIService.Get("Win32_LogicalFileSecuritySetting=""" & replace(objFile, "\", "\\") & """")
intRetVal = objFileSecuritySettings.GetSecurityDescriptor(objSD)
If intRetVal = 0 Then
strFileOwner = Q & objSD.Owner.Domain & "\" & objSD.Owner.Name & Q
Else
strFileOwner = Q & "Couldn't retrieve security descriptor." & Q
End If
' CreatedDiff = DateDiff("yyyy",strFileDateCreated,Now)
' AccessedDiff = DateDiff("yyyy",strFileDateLastAccessed,Now)
' ModifiedDiff = DateDiff("yyyy",strFileDateLastModified,Now)
' MaxTime = 3 'Max time in years. For days change "yyyy" to "d"
' If (CreatedDiff >= MaxTime) AND (AccessedDiff >= MaxTime) AND (ModifiedDiff >= MaxTime) Then
MyFile.Write strFilePath & "~|~" &_
strFileName & "~|~" &_
strFileSize & "~|~" &_
strFileType & "~|~" &_
strFileDateCreated & "~|~" &_
strFileDateLastAccessed & "~|~" &_
strFileDateLastModified & "~|~" &_
strFileOwner & vbCrLf
' End If
End If
Next
ShowSubfolders objFSO.GetFolder(objStartFolder)
Sub ShowSubFolders(Folder)
For Each Subfolder in Folder.SubFolders
On Error Resume Next
Set objFolder = objFSO.GetFolder(Subfolder.Path)
Set colFiles = objFolder.Files
For Each objFile in colFiles
On Error Resume Next
If Err Then
MyFile.Write "Error accessing " & objFile & ": " & Err.Description & vbCrLf
Err.Clear
Else
Q="""" 'Wrap quotes around string
strFilePath = Q & objFile.Path & Q
strFileName = Q & objFile.Name & Q
strFileSize = objFile.Size
strFileType = Q & objFile.Type & Q
strFileDateCreated = objFile.DateCreated
strFileDateLastAccessed = objFile.DateLastAccessed
strFileDateLastModified = objFile.DateLastModified
Set objWMIService = GetObject("winmgmts:")
Set objFileSecuritySettings = _
objWMIService.Get("Win32_LogicalFileSecuritySetting=""" & replace(objFile, "\", "\\") & """")
intRetVal = objFileSecuritySettings.GetSecurityDescriptor(objSD)
If intRetVal = 0 Then
strFileOwner = Q & objSD.Owner.Domain & "\" & objSD.Owner.Name & Q
Else
strFileOwner = Q & "Couldn't retrieve security descriptor." & Q
End If
' CreatedDiff = DateDiff("yyyy",strFileDateCreated,Now)
' AccessedDiff = DateDiff("yyyy",strFileDateLastAccessed,Now)
' ModifiedDiff = DateDiff("yyyy",strFileDateLastModified,Now)
' MaxTime = 3 'Max time in years. For days change "yyyy" to "d"
' If (CreatedDiff >= MaxTime) AND (AccessedDiff >= MaxTime) AND (ModifiedDiff >= MaxTime) Then
MyFile.Write strFilePath & "~|~" &_
strFileName & "~|~" &_
strFileSize & "~|~" &_
strFileType & "~|~" &_
strFileDateCreated & "~|~" &_
strFileDateLastAccessed & "~|~" &_
strFileDateLastModified & "~|~" &_
strFileOwner & vbCrLf
' End If
End If
Next
ShowSubFolders Subfolder
Next
End Sub

Answer 1

It's a bit difficult to tell you how to do it since you've not provided your full script, as you reference objects that were not instantiated in the code you provided.
Yes you can write each folder's output to a new file as well as free memory. You need to change your script's structure a bit though. I was doing it for you until I came across more undefined objects and gave up, so instead I'll just tell you what to do.
You don't need two subs, just one will do. Here's the outline of the structure:
Dim fso, startfolder
Set fso = CreateObject("Scripting.FileSystemObject")
startfolder = "C:\temp"
GetFileInfo startfolder
Sub GetFileInfo(folderpath)
On Error Resume Next
Dim file, logpath, logfile, folder
logpath = "C:\log\" & fso.GetBaseName(folderpath) & ".log" ' C:\log folder must exist; but of course edit path and file name conventions as desired
Set logfile = fso.OpenTextFile(logpath, 2, True)
If Err Then EchoAndQuit "Failed to create log " & logpath & ": " & Err.Description
' Write the file info in current folder
For Each file In fso.GetFolder(folderpath).Files
logfile.WriteLine file.Name ' file/security info
Next
'Set x = Nothing (Set objects instantiated in this sub to nothing to release memory)
' Now the recursive bit
For Each folder In fso.GetFolder(folderpath).SubFolders
GetFileInfo(folder.Path)
Next
On Error GoTo 0
End Sub
Sub EchoAndQuit(msg)
MsgBox msg, 4096 + 16, "Failed"
WScript.Quit
End Sub
One problem with this is you'll get an access denied error if you have multiple folder with the same name - I'll leave it to you to work out some check/naming convention to avoid this. (You could get around it by setting logfile = nothing, but you'll overwrite existing log files if there are multiple folders with the same name. So that's something you could work out, some log file check/naming convention to get around the duplicate name issue, then you could destroy the object if you wanted.)