Powershell regex group : how do I get all subgroups 2

I want to extract file1, file2 I know how to do this in javascript, I’m lost in Powershell, I can only extract the whole second match following that tut https://devblogs.microsoft.com/scripting/regular-expressions-regex-grouping-regex/, what’s the syntax ?

  $regex = '(.+\\)*(.+)\.(.+)$'
  $data = @'
  "C:\test\file1.txt"
  "C:\test\file2.txt"
  '@
  [RegEx]::Matches($data,$regex).value

>Solution :

Here is how you could do it using the call to Regex.Matches:

$data = @'
"C:\test\file1.txt"
"C:\test\file2.txt"
'@
$regex = [regex] '(.+\\)*(?<base>.+)\.(.+)'
$regex.Matches($data).ForEach{ $_.Groups['base'] }.Value

# Results in:
# file1
# file2

However since you’re dealing with paths, I would personally recommend you to use FileInfo to parse the paths:

$data = @'
"C:\test\file1.txt"
"C:\test\file2.txt"
'@ -split '\r?\n' -as [IO.FileInfo[]]

$data.BaseName