Modifying Column Within Array - powershell

Question

I'm reading in a CSV file which contains 25,000 records, and am reading each column into a psobject. Here is what I have so far:
$file = Import-CSV .\server.csv
$tempobj = New-Object psobject -Property #{
'Name' = $file.Name
'Group' = $file.Group
}
When this is ran, I get the correct results I want, being that $file.Name contains all the server names, and $file.Group contains the groups for servers. However, my issue is that I need to edit the names of each server without interfering with the .Group. Here is an example of what a server name look like as is.
WindowsAuthServer #{wdk9870WIN}
I need to remove WindowsAuthServer #{ and WIN} from each server name, leaving only the server name left, or for this example, wdk9870.
I tried using the -replace function ($tempobj.Name -replace "WindowsAuthServer #{",""), but it requires that I save the results to a new array, which then messes up or removes .Group entirely
Is there a different way to go about doing this? I'm lost.

Answer 1

Suppose your server.csv looks like this:
"Name","Group"
"WindowsAuthServer #{wdk9870WIN}","Group1"
"WindowsAuthServer #{wdk9880WIN}","Group2"
"WindowsAuthServer #{wdk9890WIN}","Group1"
"WindowsAuthServer #{wdk9900WIN}","Group1"
And you want to change the values in the Name column only, then something like this would probably do it:
Import-Csv .\server.csv | ForEach-Object {
New-Object psobject -Property #{
'Name' = ([regex]'#\{(\w+)WIN\}').Match($_.Name).Groups[1].Value
'Group' = $_.Group
}
}
This will output:
Name Group
---- -----
wdk9870 Group1
wdk9880 Group2
wdk9890 Group1
wdk9900 Group1
If you want, you can simply pipe this info to the Export-Csv cmdlet to save as a new CSV file. For that, just append | Export-Csv -Path .\server_updated.csv -NoTypeInformation to the code.
Hope that helps