How do I escape quotation marks/Double Quotes in a powershell string?

Question

I have the code below. What does this code do. It make a PARSING. I replace a little bit a powershell code that can be found HERE

So, I must copy the content from <meta name="keywords" content="MY TEXT HERE"/> and paste it into the content of <title>MY TITLE</title>.

After running Powershell, I will get <title>MY TEXT HERE</title> .

$sourcedir = "C:\Folder1\"  
 $resultsdir = "C:\Folder2\"  
 Get-ChildItem -Path $sourcedir -Filter *.html | ForEach-Object {  
     $content = Get-Content -Path $_.FullName -Raw  
     $replaceValue = ((Select-String -Pattern "(<title>).+(</title>)" -InputObject $content).Matches.Value).Split(" ")[1]    
     $findReplacement = Select-String -Pattern "(<meta name="keywords" content=").+("/>)" -InputObject $content  
     $split = ($findReplacement.Matches.Value).Split(" ")  
     $i = 0  
     do {  
         $find"/> = $split[$i]  
         $i++      
     } until ($find"/> -eq ""/>")  
     $replacementValue = ($split[1..($i - 2)]) -join ' '  
     $content.Replace("$replaceValue", "$replacementValue") | Out-File -FilePath $resultsdir\$($_.name)    
 }  

The errors are on the lines that contains quotation marks/Double Quotes on the REGEX formulas, as below

"(<title>).+(</title>)" - This will select all words from the TITLE tag

"(<meta name="keywords" content=").+("/>)" - This will select all the words from the KEYWORDS tag

} until ($find"/> -eq ""/>") - This "/> represents the closing tag from the KEYWORDS tag

So, I must replace somehow those quotation marks/Double Quotes as to work well. Can anyone help me with an updated code?

Answer 1

@Ian Xue (Shanghai Wicresoft Co., Ltd.) and @Andreas Baumgarten Thank you very much. I write the complete code here.

 $sourcedir = "C:\Folder1\"  
 $resultsdir = "C:\Folder2\"  
 Get-ChildItem -Path $sourcedir -Filter *.html | ForEach-Object {  
 $content = Get-Content -Path $_.FullName -Raw  
 $replacementValue = (Select-String -InputObject $content -Pattern '(?<=<meta name="keywords" content=").+(?="/>)').Matches.Value  
 $replaceValue = (Select-String -InputObject $content -Pattern '(?<=<title>).+(?=</title>)').Matches.Value  
 $content.Replace("$replaceValue", "$replacementValue") | Out-File -FilePath $resultsdir\$($_.name)  
 }  

Answer 2

Hi @Suzana Eree ,

What do you mean with "replace somehow those quotation marks/Double Quotes"? Replace with what? Or do you just want to remove the quotation marks/Double Quotes?

You can use Trim to remove the quotation marks of a variable.

$a = '"a test"'  
$a  
$b = $a.Trim('"')  
$b  

If you want to replace the quotation marks you can use this ( double quotes will be replaced with #):

$a = '"a test"'  
$a  
$b = $a.Replace('"',"#")  
$b  

Another option could be to split at the ":

$c = '<meta name="keywords" content="MY TEXT HERE"/>'  
$d = ($c.Split('"'))[3]  
$d  

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(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)

Regards
Andreas Baumgarten

Answer 3

hello @Andreas Baumgarten I mean it doesn't working. I believe the quotes before and after regex is the problem.

See this print screen please.

Answer 4

Hi @Suzana Eree ,

please try this:

$c = '<meta name="keywords" content="MY TEXT HERE"/>'  
Select-String -InputObject $c -Pattern "(<meta name=`"keywords`" content=`").+(`"/>)"  

----------

(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)

Regards
Andreas Baumgarten

Answer 5

Hi @Suzana Eree ,

please try this to get the "ReplaceValue" :

$replaceValue = ((Select-String -InputObject $content -Pattern "(<meta name=`"keywords`" content=`").+(`"/>)").Matches.Value).Split('"')[3]  

----------

(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)

Regards
Andreas Baumgarten