Only recurse subfolder x numbers of levels using PowerShell - powershell

Question

The PowerShell script below will list out all shared folders (excluding hidden shared folders), then list out all sub-folders and finally get the ACL information of each of them and export to a CSV file.
However, I'm trying to set the limit of the sub-folder it can drill into. For example, if I set it to 3, the script will get the ACL information of first three sub-folders. How can I do this?
Input:
path=\\server\sharefolder0\subfolder01\subfolder02
path=\\server\sharefolder1\subfolder11\subfolder12\subfolder13\subfolder14
path=\\server\sharefolder2
Expected result:
path=\\server\sharefolder0
path=\\server\sharefolder0\subfolder01
path=\\server\sharefolder0\subfolder01\subfolder02
path=\\server\sharefolder1
path=\\server\sharefolder1\subfolder11
path=\\server\sharefolder1\subfolder11\subfolder12
path=\\server\sharefolder2
This is the code:
$getSRVlist = Get-Content .\server.txt
$outputDirPath=".\DirPathList.txt"
$outputACLInfo=".\ACLInfo.CSV"
$header="FolderPath,IdentityReference,Rights"
Del $outputACLInfo
add-content -value $header -path $outputACLInfo
foreach ($readSRVlist in $getSRVlist)
{
foreach ($readShareInfoList in $getShareInfoList=Get-WmiObject Win32_Share
-computerName $readSRVlist | Where {$_.name -notlike "*$"} | %{$_.Name})
{
foreach ($readDirPathList in
$getDirPathList=get-childitem \\$readSRVlist\$readShareInfoList -recurse
| where {$_.PSIsContainer})# | %{$_.fullname})
{
$getACLList=get-ACL $readDirPathList.fullname | ForEach-Object
{$_.Access}
foreach ($readACLList in $getACLList)
{
$a = $readDirPathList.fullname + "," +
$readACLList.IdentityReference + "," + $readACLList.FileSystemRights
add-content -value $a -path $outputACLInfo
}
}
}
}

Answer 1

Recursion is your friend. Try this:
$maxDepth = 3
function TraverseFolders($folder, $remainingDepth) {
Get-ChildItem $folder | Where-Object { $_.PSIsContainer } | ForEach-Object {
if ($remainingDepth -gt 1) {
TraverseFolders $_.FullName ($remainingDepth - 1)
}
}
}
TraverseFolders "C:\BASE\PATH" $maxDepth
Edit: Now I see what you mean. For checking the first three parent folders of a given path try this:
$server = "\\server\"
$path = ($args[0] -replace [regex]::escape($server), "").Split("\\")[0..2]
for ($i = 0; $i -lt $path.Length; $i++) {
Get-ACL ($server + [string]::join("\", $path[0..$i])
}

Answer 2

In newer version of powershell one can use -DEPTH parameter,
One liner can help-
get-childitem -path \\server\folder -Depth 2 -Directory | Select-object -Property Name, Fullname
It will search for 2 nested folders and will provide folder name and full path of that particular folder. Tested in version- PSVersion 5.1.17134.858