Move every folder to top level including content recursively in Powershell - powershell

Question

how do I recursively move all directories to the top level including all their sub directories.
The files in the directories should be copied as well.
And if a directory already exists its contents should be merged and all the files should remain (maybe via renaming the files)
e.g.
dir1
----img1
----img2
----dir2
--------img1
--------img2
------------dir1
------------img1
------------img2
------------img3
dir4
----img1
----img2
----img3
becomes
dir1
----img1
----img1_1
----img2
----img2_2
----img3
dir2
----img1
----img2
dir4
----img1
----img2
----img3
My approach was something like that.
Get-ChildItem $SOURCE_PATH -Recurse |
Foreach-Object {
$IS_DIR = Test-Path -Path $_.FullName -PathType Container
if ($IS_DIR) {
Move-Item $_.FullName -dest ($DESTPATH + "/" + $_.Name)
}
}
thanks.

Answer 1

Instead of moving directories I would move individual files to have control over destination name of each file.
This code is untested, it is just intended to give you an idea. Tweak as needed.
# Use parameter -File to operate on files only
Get-ChildItem $SOURCE_PATH -File -Recurse | Foreach-Object {
# Get name of parent directory
$parentDirName = $_.Directory.Name
# Make full path of destination directory
$destSubDirPath = Join-Path $DESTPATH $parentDirName
# Create destination directory if not exists (parameter -Force).
# Assignment to $null to avoid unwanted output of New-Item
$null = New-Item $destSubDirPath -ItemType Directory -Force
# Make desired destination file path. First try original name.
$destFilePath = Join-Path $destSubDirPath $_.Name
# If desired name already exists, append a counter until we find an unused name.
$i = 1
while( Test-Path $destFilePath ) {
# Create a new name like "img1_1.png"
$destFilePath = Join-Path $destSubDirPath "$($_.BaseName)_$i.$($_.Extension)"
$i++
}
# Move and possibly rename file.
Move-Item $_ $destFilePath
}