Use Powershell to print out line number of code matching a RegEx

Question

I think we have a bunch of commented out code in our source, and rather than delete it immediately, we've just left it. Now I would like to do some cleanup.

So assuming that I have a good enough RegEx to find comments (the RegEx below is simple and I could expand on it based on our coding standards), how do I take the results of the file that I read up and output the following:

• Filename
• Line Number
• The actual line of code

I think I have the basis of an answer here, but I don't know how to take the file that I've read up and parsed with RegEx and spit it out in this format.

I'm not looking for the perfect solution - I just want to find big blocks of commented out code. By looking at the result and seeing a bunch of files with the same name and sequential line numbers, I should be able to do this.

$Location = "c:\codeishere"

[regex]$Regex = "//.*;" #simple example - Will expand on this...

$Files = get-ChildItem $Location -include *cs -recurse
foreach ($File in $Files) {
    $contents = get-Content $File
    $Regex.Matches($contents) | WHAT GOES HERE?
}

Answer 1

You could do:

dir c:\codeishere -filter *.cs -recurse | select-string -Pattern '//.*;' | select Line,LineNumber,Filename