#Touch-File.ps1

Function Touch-File {
    Param([string]$path=$(Throw "You must specify the name of a file"),
          [datetime]$touch=(Get-Date)
          ) 

    #properties to change

    [datetime]$UTCTime=$touch.ToUniversalTime()
    
    $file=Get-Item $path -ea "silentlycontinue"
    
    if ($file) {
        Write-Host "Touching $path" -foregroundcolor Green
        $file.CreationTime=$touch
        $file.CreationTimeUtc=$UTCTime
        $file.LastAccessTime=$touch
        $file.LastAccessTimeUtc=$UTCTime
        $file.LastWriteTime=$touch
        $file.LastWriteTimeUtc=$UTCTime
    }
    else {
        Write-Warning "Failed to find $path"
        
    }

}

dir c:\scripts\posh\ad\*.ps1 | foreach {
  Touch-File $_ "8/1/2008 01:00:00"
  }