Cleanup Directory for files older than X days

# this is mostly stolen from http://stackoverflow.com/a/19326146/18524
function Cleanup-Dir
{
    param([string]$path, [int]$limit)

    $minDay = (Get-Date).AddDays(-1 * $limit)

    # delete files older than $limit
    Get-ChildItem -Path $path -Recurse -Force `
        | Where-Object { !$_.PSIsContainer -and $_.LastWriteTime -lt $minDay } `
        | Remove-Item -Force -ErrorAction SilentlyContinue

    # delete any empty directories left behind after deleting old files
    Get-ChildItem -Path $path -Recurse -Force `
        | Where-Object { $_.PSIsContainer -and (Get-ChildItem -Path $_.FullName -Recurse -Force | Where-Object { !$_.PSIsContainer }) -eq $null } `
        | Remove-Item -Force -ErrorAction SilentlyContinue
}

Cleanup-Dir "C:\temp" 10
Cleanup-Dir "C:\IntactStorage\Collectors\*\Backup" 14
#Cleanup-Dir "C:\IntactStorage\Storage\Temp" 3
#Cleanup-Dir "C:\IntactStorage\Temp" 1