powershell script to make directories for each file in a directory and move those files into them.

mkdirs.ps1

# This script will make directories for all files in a specified directory and move them into it.
# You must provide the input directory as the first argument and can optionally specify an output
# directory as the second argument.  If no output directory is specified the input directory will
# be used.

$inDir = $args[0]
$outDir = $args[1]

$isInDir = Test-Path -LiteralPath $inDir -PathType Container

if ($outDir -ne $null) {
    $isOutDir = Test-Path -LiteralPath $outDir -PathType Container
}

if ($isInDir -eq $false) {
    throw "Error: $inDir : is not a directory"
}

if ($isOutDir -eq $false) {
    throw "Error: $outDir : is not a directory"
}

$files = Get-ChildItem -LiteralPath $inDir -File

foreach ($f in $files) {
    $fExt = $f.Extension
    if ($outDir -ne $null) {
        $fDir = -join($outDir,"\",$f.BaseName)
    } else {
        $fDir = $f.FullName.Replace($fExt,"")
    }
    New-Item -Path $fDir -ItemType Directory | Out-Null
    Move-Item -LiteralPath $f.FullName -Destination $fDir
}