Powershell Create Folder's Name

Question

So, I'm tryng to create a folder, where i merge 2 strings and Get Date; like this:

2345__OPEXs_datetime

My code:

Get-ChildItem 'C:\Scripts\MetadataExport' | New-Item -Name (Get-ChildItem 'C:\Scripts\MetadataExport' -Name).Split('-')[2] + '_XIPs' + "_$((Get-Date).ToString('yyyy-MM-dd'))" -ItemType Directory -Force

But it's gives-me the follow error:

  New-Item : A positional parameter cannot be found that accepts argument '_XIPs'.
  At line:1 char:45
  + ... taExport' | New-Item -Name (Get-ChildItem 'C:\Scripts\MetadataExport' ...
  +                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  + CategoryInfo          : InvalidArgument: (:) [New-Item], ParameterBindingException
  + FullyQualifiedErrorId :     PositionalParameterNotFound,Microsoft.PowerShell.Commands.NewItemCommand

Can you help-me to figure it out what i'm doing wrong?

Best

score 3 · Accepted Answer · answered Oct 29 '20 at 17:22

If you want to dynamically calculate argument values based on each input object from the pipeline, you need to use a delay-bind script block ({ ... }), inside of which the automatic $_ variable refers to the input object at hand:

Get-ChildItem C:\Scripts\MetadataExport | New-Item -Type Directory -Force -Name {
  $_.Name.Split('-')[2] + '_XIPs' + "_$((Get-Date).ToString('yyyy-MM-dd'))" 
} -WhatIf

^{Note: The -WhatIf common parameter in the command above previews the operation. Remove -WhatIf once you're sure the operation will do what you want.}

Powershell Create Folder's Name

1 Answers1