[Fors1k]

Код:

function copirovanie {
    $Date = Get-Date
    $creation_time_lt = -1
    $creation_time_ge = -2
    $wObject_options  = {
        $_.creationtime -lt $Date.AddDays($creation_time_lt) -and 
        $_.creationtime -ge $Date.AddDays($creation_time_ge)
    }

    Get-ChildItem "С:\test" -Recurse | Where-Object $wObject_options | ForEach-Object {
        $name = $_.Name -replace "_[^_]+$", $_.Extension
        Copy-Item -LiteralPath $_.FullName -Destination "D:\test\$name" 
        
    } 
}