Powershellでフォルダの容量をしらべてＨＴＭＬに出力する必要があるためのコード。

$path = "E:\hoge"

Get-ChildItem $path | ? PSIsContainer | % {
    $subFolderItems = (Get-ChildItem $_.FullName -Recurse | where Length | measure Length -sum)
    [PSCustomObject]@{
        Fullname=$_.Name
        MB=[decimal]("{0:N2}" -f ($subFolderItems.sum / 1MB))
    }
}
$path = "E:\hoge"

$html = @"
<html>
<head>
    <title>Folder Sizes</title>
    <style>
        table, th, td {
            border: 1px solid black;
            border-collapse: collapse;
        }
        th, td {
            padding: 5px;
            text-align: left;
        }
    </style>
</head>
<body>
    <h1>Folder Sizes</h1>
    <table>
        <tr>
            <th>Folder Name</th>
            <th>Size (MB)</th>
        </tr>
"@

Get-ChildItem $path | ? PSIsContainer | % {
    $subFolderItems = (Get-ChildItem $_.FullName -Recurse | where Length | measure Length -sum)
    $html += "<tr><td>$($_.Name)</td><td>$([decimal]("{0:N2}" -f ($subFolderItems.sum / 1MB)))</td></tr>"
}

$html += @"
    </table>
</body>
</html>
"@

$html | Out-File "E:\\\\hoge\\\\output.html"

参考にしたサイト：https://it-study.info/powershell/folder-subfolder-check/