Batch Processor

$sourcedir = "C:\Folder1\"
$resultsdir = "C:\Folder1\"

<# I copy the content of the tag <link rel="canonical"  in the tag "OG:URL" and in the tag  "@ID":             #> `

Get-ChildItem -Path $sourcedir -Filter *.html | ForEach-Object {
   $content = Get-Content -Path $_.FullName -Raw
   $replaceValue = (Select-String -InputObject $content -Pattern '(?<=<link rel="canonical" href=").+(?=" />)').Matches.Value
   $content = $content -replace '(?<=<meta property="og:url" content=").+(?="/>)',$replaceValue
    Set-Content -Path $resultsdir\$($_.name) $content
   $content = $content -replace '(?<="@id": ").+(?=")',$replaceValue
    Set-Content -Path $resultsdir\$($_.name) $content

<# I copy the content of the tag <title>  in the tags ABSTRACT, SUBJECT, OG:TITLE, HEADLINE, KEYWORDS            #> `

  $replaceValue = (Select-String -InputObject $content -Pattern '(?<=<title>).+(?=</title>)').Matches.Value
  $content = $content -replace '(?<=<meta name="abstract" content=").+(?="/>)',$replaceValue
   Set-Content -Path $resultsdir\$($_.name) $content
  $content = $content -replace '(?<=<meta name="Subject" content=").+(?="/>)',$replaceValue
   Set-Content -Path $resultsdir\$($_.name) $content
  $content = $content -replace '(?<=<meta property="og:title" content=").+(?=" />)',$replaceValue
   Set-Content -Path $resultsdir\$($_.name) $content
  $content = $content -replace '(?<="headline": ").+(?=",)',$replaceValue
   Set-Content -Path $resultsdir\$($_.name) $content
  $content = $content -replace '(?<="keywords": ").+(?=",)',$replaceValue
   Set-Content -Path $resultsdir\$($_.name) $content

<# I copy the content of the tag <meta name="description"  in the tags "OG:DESCRIPTION" and in the tag "description": "        #> `

   $replaceValue = (Select-String -InputObject $content -Pattern '(?<=<meta name="description" content=").+(?="/>)').Matches.Value
   $content = $content -replace '(?<=<meta property="og:description" content=").+(?="/>)',$replaceValue
    Set-Content -Path $resultsdir\$($_.name) $content
    $content = $content -replace '(?<="description": ").+(?=",)',$replaceValue
    Set-Content -Path $resultsdir\$($_.name) $content
 }