I&#39;m trying to extract text from a set of files on Windows using the Powershell (version 4):

    PS &gt; Select-String -AllMatches -Pattern &lt;mypattern-with(capture)&gt; -Path file.jsp | Format-Table

So far, so good. That gives a nice set of `MatchInfo` objects:

	IgnoreCase                    LineNumber Line                          Filename                      Pattern                       Matches
	----------                    ---------- ----                          --------                      -------                       -------
		True                            30   ...                           file.jsp                      ...                           {...}

Next, I see that the captures are in the matches member, so I take them out:

    PS &gt; Select-String -AllMatches -Pattern &lt;mypattern-with(capture)&gt; -Path file.jsp | ForEach-Object -MemberName Matches | Format-Table

Which gives:

	Groups        Success Captures                 Index     Length Value
	------        ------- --------                 -----     ------ -----
	{...}         True    {...}                    49        47     ...

or as list with `| Format-List`:

	Groups   : {matched text, captured group}
	Success  : True
	Captures : {matched text}
	Index    : 39
	Length   : 33
	Value    : matched text

Here&#39;s where I stop, I have no idea how to go further and obtain a list of *captured group* elements.

I&#39;ve tried adding another `| ForEach-Object -MemberName Groups`, but it seems to return the same as the above.

The closest I get is with `| Select-Object -Property Groups`, which indeed gives me what I&#39;d expect (a list of sets):

	Groups
	------
	{matched text, captured group}
	{matched text, captured group}
	...

But then I&#39;m unable to extract the *captured group* from each of them, I tried with `| Select-Object -Index 1` I get only one of those sets.

---

Update: a possible solution
---------------------------

It seems that by adding `| ForEach-Object { $_.Groups.Groups[1].Value }` I got what I was looking for, but I don&#39;t understand why - so I can&#39;t be sure I would be able to get the right result when extending this method to whole sets of files.

Why is it working?

As a side note, this `| ForEach-Object { $_.Groups[1].Value }` (i.e. without the second `.Groups`) gives the same result.

I&#39;d like to add that, upon further attempts, it seems the command can be shortened by removing the piped `| Select-Object -Property Groups`.

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How to get the captured groups from Select-String?