try {
    # open the hashes file
    $reader = [System.IO.File]::OpenText("hashes.txt")

    # first line is the file path
    $filePath = $reader.ReadLine();
    while ($filePath -ne $null) {
        [Console]::Out.Write($filePath + " ... ")

        $actualHash = Get-FileHash $filePath
        $actualHash = $actualHash.Hash

        # next line is just the size, which we don't care about
        $ignore = $reader.ReadLine();

        # next line is the real hash
        $realHash = $reader.ReadLine();
        if ($realhash -eq $actualHash) {
            "OK!"
        }
        else
        {
            "No!"
            "`tExpected: [" + $realHash + "]"
            "`tActual  : [" + $actualHash + "]"
        }

        # move on to the next file
        $filePath = $reader.ReadLine()
    }
}
catch
{
    $_
}
finally {
    $reader.close()
    "Done!"
    pause
}