azure - 如果 'foreach' 中的所有值均为 true

Question

我正在编写一个 Powershell 脚本，用于查找所有容器“LastModifiedDate”小于 6 个月的所有 Azure 存储帐户。如果只有一个容器对此语句不成立，则应忽略 ASA。

实现此目的的一种方法是获取一个存储帐户的“LastModifiedDate”数组，然后将其与(Get-Date).AddDays(-180)进行比较。问题是如何正确地做到这一点？如果数组中只有一个值(如果为 FALSE)，则应忽略它。

我使用 BREAK 运算符实现了这一点，但我认为这不是一个好的解决方案。谁能帮我解决这个问题吗？

function check_stores {

     $stores = Get-AzureRmResource -ODataQuery "`$filter=resourcetype eq 'Microsoft.Storage/storageAccounts'" $x = (Get-Date).AddDays(-180)

     foreach($store in $stores){

         $storename = $store.Name

         $names = (Get-AzureRmStorageContainer -ResourceGroupName $store.ResourceGroupName -StorageAccountName $store.Name).Name

         foreach($name in $names){

             $date = (Get-AzureRmStorageContainer -ResourceGroupName $store.ResourceGroupName -StorageAccountName $store.Name -Name $name).LastModifiedTime

             if($date -gt $x){
                  break
             }
         }

         if($x -gt $date){
             "Storage Account Name: $storename"

         }
     }

}

check_stores

Answer 1

正如评论的:这就是 PowerShell 的美妙之处，你不需要自己迭代，equality operators将自行迭代左侧参数集合

When the input to an operator is a scalar value, comparison operatorsreturn a Boolean value. When the input is a collection of values, thecomparison operators return any matching values. If there are nomatches in a collection, comparison operators return an empty array.

由于我无法访问您的环境，因此我为此创建了一个通用答案:

$Dates = [DateTime[]]('2020-03-10', '2020-03-11', '2020-03-12', '2020-03-14')
$Date1 = [DateTime]'2020-03-09'
$Date2 = [DateTime]'2020-03-12'
$Date3 = [DateTime]'2020-03-15'

任何日期

检查是否有任何日期小于给定日期

If ($Dates -lt $Date1) {"Some dates are less then $Date1"} Else {"None of the dates are less then $Date1"}
If ($Dates -lt $Date2) {"Some dates are less then $Date2"} Else {"None of the dates are less then $Date2"}
If ($Dates -lt $Date3) {"Some dates are less then $Date3"} Else {"None of the dates are less then $Date3"}

产量:

None of the dates are less then 03/09/2020 00:00:00
Some dates are less then 03/12/2020 00:00:00
Some dates are less then 03/15/2020 00:00:00

所有日期

这意味着，如果您想检查所有日期是否都在该范围内，则需要执行相反的操作(检查是否有任何日期不大于或等于给定日期):

If (!($Dates -ge $Date1)) {"All dates are less then $Date1"} Else {"Some of the dates aren't less then $Date1"}
If (!($Dates -ge $Date2)) {"All dates are less then $Date2"} Else {"Some of the dates aren't less then $Date2"}
If (!($Dates -ge $Date3)) {"All dates are less then $Date3"} Else {"Some of the dates aren't less then $Date3"}

产量:

Some of the dates aren't less then 03/09/2020 00:00:00
Some of the dates aren't less then 03/12/2020 00:00:00
All dates are less then 03/15/2020 00:00:00

全部正确

一般来说，如果您想检查是否所有值都为真，您可以只检查如果没有值不 正确:

$SomeTrue = $False, $True, $False, $True # (Not all true)
$AllTrue = $True, $True, $True, $True

!($SomeTrue -ne $True) # => All true?
False
!($AllTrue -ne $True) # => All true ?
True