Copy files into newly created folders on partial filename match - powershell

Question

Hi all reaching out because I've reached the limits of my powershell knowledge.
I have a directory that has over 200,000 files, I need to copy all files that have a partial match to the filename into folders that I have already created using this script
Set-Location "C:\Users\joshh\Documents\Testing Environment"
$Folders = Import-Csv "C:\Users\joshh\Documents\Weichert.csv"
ForEach ($Folder in $Folders) {
New-Item "myfilepathhere\$($Folder.folderName)" -type directory
}
UPDATED:
Here is a sample of the filenames:
TH-246-02050-LOL-SQ-ALT2.png
TH-246-02050-WHT-H.png
TH-247-02050-EMB-LOD.png
TH-246-02050-LOL-H-ALT2.png
TH-246-02050-LOL-SQ.png
TH-246-02050-LOL-SQ-ALT.png
TH-247-02050-EMB-LOD-ALT.png
TH-247-02050-EMB-LOL.png
TH-247-02050-EMB-LOL-ALT.png
TH-247-02050-LOD-H.png
Above is an example of what the filenames look like, I need to copy all files containing -EMB- and move them into folders in another directory that match the first 12 characters of that filename (ex. TH-247-02050)
UPDATED:
And if a folder doesn't exist create a folder with the first 12 characters of the filename.
Mind you the first 12 characters have many variants some start with RM, KW, etc.
This is what I have so far and what I know but I know the Move-Item portion isn't exactly what I want it to do
$source = "targetPath"
$destination = "targetPath2"
$embFiles = #(Get-ChildItem ${source}/*EMB* -File | Select-Object -ExpandProperty FullName)
foreach($file in $embFiles) {
if($file | Where-Object { $_ -clike "*EMB*" }){
Move-Item -Path $source -Destination $destination
}
}
Any and all help would be GREATLY appreciated!

Answer 1

Here is one way you could do it:
Get all files that contain -EMB- in their names: -Filter *-EMB-* -File.
Group all this files by everything before -EMB-, here we can use Group-Object -AsHashTable and a calculated expression using Regex.Match. See https://regex101.com/r/iOoBJS/1 for details.
Loop through the Keys of the hash table, each Key will be the Name Destination folder of the group of files (i.e.: TH-247-02050).
Join the destination path ($destinationPath2) with the name of the destination folder ($folder), here we can use Join-Path and check if this joined path exists, if it doesn't, create a new folder with New-Item.
Lastly, we can move all the files (the Values of each Key from the hash table) to their corresponding destination.
$source = "targetPath"
$destination = "targetPath2"
$map = Get-ChildItem $source -Filter *-EMB-* -File | Group-Object -AsHashTable -AsString {
[regex]::Match($_.BaseName, '(?i).+(?=-EMB-)').Value
}
foreach($folder in $map.Keys) {
$d = Join-Path $destination -ChildPath $folder
$d = New-Item $d -ItemType Directory -Force
# -WhatIf can be removed once you have checked the script is doing what you want
$map[$folder] | Move-Item -Destination $d -WhatIf -Verbose
}
-AsString is needed in Windows PowerShell due to a bug.