在 PowerShell 中获取卷号 [英] Fetching volume number in PowerShell

问题描述

我正在运行 PS cmdlet get-customcmdlet 生成以下输出

I am running PS cmdlet get-customcmdlet which is generating following output

Name                         FreeSpaceGB
----                         -----------
ABC-vol001                   1,474.201
ABC-vol002                   2,345.437     
ABC-vol003                   3,147.135
random-value                 4,147.135

我想从最高的 volume number ABC-vol003 中捕获 003 我也想忽略 random-value 并且只想考虑其中包含 vol 的值

I want to capture 003 from the highest volume number ABC-vol003 I also want to ignore random-value and only want to consider the values which have vol in it

get-customcmdlet | select Name 

Name              
----          
ABC-vol001   
ABC-vol001      
ABC-vol001
random-value

在这里，我希望 003 根据最高音量而变化

Here, I want 003 to be variable based upon highest volume number

推荐答案

您可以进行自定义排序，然后选择最后一项，例如:

You could do a custom sort, and select the last item, like:

Get-CustomCmdlet | Sort {$_.Name -replace '.*?(\d+)$','$1'} | Select -Last 1

看起来您已经知道如何使用 Where，因为您在编辑它之前在问题中已经有了它，但您只能使用它获取名称中包含vol"的卷，然后对它们进行排序...

It looked like you already knew how to use Where, since you had that in your question before you edited it out, but you can use that to only get volumes that have 'vol' in the name, then sort those...

Get-CustomCmdlet | Where{$_.Name -match '-vol\d+'} | Sort {$_.Name -replace '.*?(\d+)$','$1'} | Select -Last 1

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