Azure Powershell过滤

因此，我正在编写一个连接到Azure AD和Exchange Online的脚本，以检索使用率超过90gb的所有邮箱，唯一的问题是它需要很多时间，因为它会在所有邮箱中运行，即使是那些没有达到90gb的邮箱，当我尝试使用“-Filter”参数时，我会收到一个在cmdlet中无法识别的错误

这是我的台词-

$members = Get-Mailbox -resultsize unlimited | %{Get-MailboxStatistics $_.distinguishedname} | Select Identity, DisplayName, @{name=”TotalItemSize”; expression={[math]::Round(($_.TotalItemSize.ToString().Split(“(“)[1].Split(” “)[0].Replace(“,”,””)/1GB),2)}}, ItemCount -Filter "TotalItemSize -gt 90"

---

-Filter

不是

选择对象的参数

这应该可以解决这个问题：

$members=Get Mailbox-resultsize unlimited-Filter“TotalItemSize-gt'90'”{Get MailboxStatistics$.differentizedName}}124;选择标识，显示名称，@{name=“TotalItemSize”；表达式={[math]：：Round（$..TotalItemSize.ToString（）.Split（“”[1]。Split（“”[0]。替换（“，”）/1GB），2）}，ItemCount
不幸的是，属性
TotalItemSize
不在其中，因此您只能使用如下ForEach对象循环：

$threshHoldBytes = 90GB   # --> 96636764160 bytes
$largeMailBoxes  = Get-Mailbox -ResultSize Unlimited | Get-MailboxStatistics | ForEach-Object {
    $totalByteSize = [int64]($_.TotalItemSize.ToString() -replace '^[^\(]+\(([\d,]+\s*bytes)\)', '$1' -replace '\D')
    if ($totalByteSize -gt $threshHoldBytes) {
        $_ | Select-Object Identity DisplayName, 
                           @{Name = 'TotalItemSize (GB)'; Expression={[math]::Round($totalByteSize / 1Gb, 2)}}, 
                           ItemCount
    }
}

# display on screen
$largeMailBoxes | Format-Table -AutoSize  # or use Out-GridView if it doesn't fit the console width

# export to Csv
$largeMailBoxes | Export-Csv -Path 'Path\To\OverSizedMailboxes.csv' -NoTypeInformation

或者使用
Where Object
子句（这意味着您必须做两次数学运算..）

您还可以创建一个小的辅助函数来进行计算，这样代码就更容易理解了：

function Get-ItemSizeInGB ([string]$totalSize) {
    # you can also use this function for property TotalDeletedItemSize
    $byteSize = [int64]($totalSize -replace '^[^\(]+\(([\d,]+\s*bytes)\)', '$1' -replace '\D')
    # return the size in Gb, rounded to two decimals
    [math]::Round($byteSize / 1Gb, 2)
}

现在你可以做了

$threshHoldGB   = 90  # this time, we have a threshold in Gb
$largeMailBoxes = Get-Mailbox -ResultSize Unlimited | Get-MailboxStatistics | 
                  Where-Object { (Get-ItemSizeInGB $_.TotalItemSize.ToString()) -gt $threshHoldGB } |
                  Select-Object Identity DisplayName, 
                                @{Name = 'TotalItemSize (GB)'; Expression={(Get-ItemSizeInGB $_.TotalItemSize.ToString())}}, 
                                ItemCount

# display on screen
$largeMailBoxes | Format-Table -AutoSize  # or use Out-GridView if it doesn't fit the console width

# export to Csv
$largeMailBoxes | Export-Csv -Path 'Path\To\OverSizedMailboxes.csv' -NoTypeInformation

正则表达式详细信息：

^              Assert position at the beginning of the string
[^\(]          Match any character that is NOT a “(”
   +           Between one and unlimited times, as many times as possible, giving back as needed (greedy)
\(             Match the character “(” literally
(              Match the regex below and capture its match into backreference number 1
   [\d,]       Match a single character present in the list below
               A “digit” (any decimal number in any Unicode script)
               The literal character “,”
      +        Between one and unlimited times, as many times as possible, giving back as needed (greedy)
   \s          Match a single character that is a “whitespace character” (any Unicode separator, tab, line feed, carriage return, vertical tab, form feed, next line)
      *        Between zero and unlimited times, as many times as possible, giving back as needed (greedy)
   bytes       Match the character string “bytes” literally (case sensitive)
)             
\)             Match the character “)” literally

The `-replace '\D'` removes all non-numeric characters

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^              Assert position at the beginning of the string
[^\(]          Match any character that is NOT a “(”
   +           Between one and unlimited times, as many times as possible, giving back as needed (greedy)
\(             Match the character “(” literally
(              Match the regex below and capture its match into backreference number 1
   [\d,]       Match a single character present in the list below
               A “digit” (any decimal number in any Unicode script)
               The literal character “,”
      +        Between one and unlimited times, as many times as possible, giving back as needed (greedy)
   \s          Match a single character that is a “whitespace character” (any Unicode separator, tab, line feed, carriage return, vertical tab, form feed, next line)
      *        Between zero and unlimited times, as many times as possible, giving back as needed (greedy)
   bytes       Match the character string “bytes” literally (case sensitive)
)             
\)             Match the character “)” literally

The `-replace '\D'` removes all non-numeric characters

$members = Get-Mailbox -resultsize unlimited | %{Get-MailboxStatistics $_.distinguishedname} | Select Identity, DisplayName, @{name=”TotalItemSize”; expression={[math]::Round(($_.TotalItemSize.ToString().Split(“(“)[1].Split(” “)[0].Replace(“,”,””)/1GB),2)}}, ItemCount  | ?{$_.TotalItemSize -gt 90}