使用Powershell匹配键时获取空哈希值 [英] Getting null hash value while matching key using powershell

问题描述

我试图通过匹配键名(忽略白色和字符大小写)来获取键的值.

I am trying to get the value of the key by matching key name(ignoring the white and character case).

代码:

$tagHash = (Get-AzResourceGroup -Name "twmstgmsnp").Tags
Write-Host "Resource Group tags key : " $tagHash.Keys
Write-Host "Resource Group tags value : " $tagHash.Values
$ownervalue = $tagHash.GetEnumerator() | ? {($_.Key).ToString().Replace(' ','') -eq 'CreatedBy'} | % Value
Write-Host "Resource Group CREATEDBY tag : " $ownervalue

结果:

资源组标签键:PURPOSE Created By

资源组标签值:QA MS Team2 env Shubham Mishra

资源组CREATEDBY标签:

Resource Group CREATEDBY tag :

注意:如果键的文本应为"createdby"，则应始终获取该值.密钥是否为创建者"，创建者"，创建者"，创建者".它应该忽略关键的空白和大小写.

推荐答案

我的猜测是，您可以通过首先替换键中的所有空格，然后将其与CreatedBy进行比较，来最轻松地获得键的确切名称. 无需GetEnumerator()方法，只需从.Keys数组获取键名:

My guess is that you can get the exact name for the key easiest by replacing all whitespace from it first and next compare it to CreatedBy.
No need for the GetEnumerator() method, simply get the key name from the .Keys array:

$ownerKey = $tags.Keys | Where-Object { ($_ -replace '\s') -eq 'CreatedBy'}
Write-Host "Resource Group CREATEDBY Tag   : $ownerKey"
Write-Host "Resource Group CREATEDBY Value : $($tags[$ownerKey])"

输出:

Resource Group CREATEDBY Tag   :  Created By
Resource Group CREATEDBY Value :  Shubham Mishra

^{默认情况下，-eq运算符不区分大小写.如果您需要在其他地方进行区分大小写的比较，请使用-ceq}

^{By default the -eq operator works case-insensitive. If you need case-sensitive comparison somewhere else, use -ceq}

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