PARSING: Copy lines from several files into a single point of other html files

Question

hello, maybe someone can help me. I have a lot of html files in Folder-1 and the same number of files in Folder-2. The name of the files is the same on both folders, only the content of them is different. As you can see in this image what I want to do is to copy the lines from <!--START--> to <!--FINNISH --> and paste them to other files from second folder, in html files, in the point PUT-HERE-THE-CODE

You have to know that the content of <!--START--> to <!--FINNISH --> is different on all pages, so only this 2 words are repeated in all files, the links are different. And in the Folder-2, the only part that repeats in all files is PUT-HERE-THE-CODE

This are the code lines from both files:

https://justpaste.it/7r6a2

and

https://justpaste.it/3el6h

Answer 1

I find The solution: Thanks for regex.

$sourceFiles = Get-ChildItem 'c:\Folder1'  
$destinationFolder = 'c:\Folder2'

foreach ($file in $sourceFiles) {

$sourceContent = Get-Content $file.FullName -Raw
$contentToInsert = [regex]::match($sourceContent,"(?ms)\<!--START--\>(.+)\<!--FINNISH --\>").value
$destinationContent = Get-Content $destinationFolder\$($file.Name) -Raw
$destinationContent = $destinationContent -replace 'PUT-HERE-THE-CODE',$contentToInsert

Set-Content -Path $destinationFolder\$($file.Name) -Value $destinationContent -Encoding UTF8

} #end foreach file

Answer 2

I'll leave you to deal with getting the file names and directories into the code, but this pair of regular expressions should do the replacement:

$f1text = get-content .\f1.txt -raw
$f2text = get-content .\f2.txt -raw
$f3text = ""
if ($f1text -cmatch "(?ms)\<!--START--\>(.+)\<!--FINNISH --\>"){
    $p = $Matches[1]
    if ($f2text -cmatch "(?ms)PUT-HERE-THE-CODE"){
        $f3text = $f2 -creplace "PUT-HERE-THE-CODE", "$p"
    }
}

Answer 3

Thank you, yes, but your code will make a replacement only in 2 files, f1.txt and f2.txt. But I have 1300 files in Folder-1 and 1300 files in Folder-2. So I want to change all at once. How can I do that ?