Delete Folders where count>5 - powershell

Question

I Need some help here: the following script needs to be changed so, that the script delete only Folders in the Subdirectory not Files. Can anyone help me?
$path = "C:\test\1"
$keep = 3
$strLogFileName = "c:\test\yourlogfile.log";
function Log-Message
{
Param ([string]$logtext)
Add-content $strLogFileName -value $logtext
}
$dirs = Get-ChildItem -Path $path -Recurse | Where-Object {$_.PsIsContainer}
foreach ($dir in $dirs) {
$files = Get-ChildItem -Path $dir.FullName | Where-Object {-not $_.PsIsContainer -and $_.name - like "*.zip"}
if ($files.Count -gt $keep) {
$files | Sort-Object CreationTime -desc| Select-Object -First ($files.Count - $keep) |
% { $dt=get-date;(Log-Message "Deleting File $_ on $dt");$_ }| Remove-Item -Force
}
}

Answer 1

My original answer was -WAY- off base, and having RTFQ I've got something that should work for you.
function Remove-LargeFolders
{
Param([string]$RootPath)
$keep = 5
#Get a list of the dirs in the first level of the folder
$dirs = Get-ChildItem -Path $RootPath | Where-Object {$_.PsIsContainer}
foreach ($dir in $dirs) {
#Call function on the new folder to check all the sublevels before deleting
#the top-level folder.
Remove-LargeFolders $dir.FullName
$files = Get-ChildItem -Path $dir.FullName | Where-Object {-not $_.PsIsContainer `
-and $_.name -like "*.zip"}
if ($files.Count -gt $keep) {
$dt=get-date
Log-Message "Deleting Folder $dir on $dt"
$dir
Remove-Item $dir.FullName -Force -Recurse
}
}
}
This should do what you're looking for. The answer was recursion! Essentially, the script only looks at one level of folders at a time. It digs down to the bottom of each folder tree, before working it's way back up to the top.
This script will work as written, but there is a proviso. Right now, if the script is targeting a structure like this:
Target Folder (4 files)
SubFolder (10 files)
SubSubFolder (5 files)
It will check SubSubFolder first and not delete it, since it has 5 or fewer files. However, once it hops back up to SubFolder, it will see a folder that is too big and kill it off, getting rid of SubSubFolder in the process. If you want a way around that, you'll need to build in some checks that will allow you to see if each folder has another folder in it before deleting.
Hope this helps more!