Remove part of string from each line of a textfile

Question

I am working on a program where I am copying links from gmail inbox and save it in a text file, the link that is copied also have some unwanted characters, and I want to get rid of those unwanted characters. please help.

here is my code.

Here is the function of copying links:

public void grabAuthentication()
{
    HtmlElementCollection links = webBrowser4.Document.Links;

    using (TextWriter tw = new StreamWriter("activation.txt", true))
    {
        foreach (HtmlElement link in links)
        {
            if (link.OuterHtml.Contains("https://example.com"))
            {
                tw.WriteLine(link.InnerHtml);

            }
        }

    }

}

Firing the function on a button click :

private void button1_Click(object sender, EventArgs e)
{
   grabAuthentication();
}

Example of links collected in textfile :

https://example.com/<WBR>verify/<WBR>y8sURA0egNgcaUyMlOapqQ8ehleNDv<WBR>L6Pu48Pkg0
https://example.com/<WBR>verify/<WBR>PtjKgpMuqeAchnvZus7nDCnJ6oKfdr<WBR>oFX1k8dIBSs
https://example.com/<WBR>verify/<WBR>xtojDKjbNzXWYKTDlTqmFmRZGRcXax<WBR>TvTEADaGQ

Now I want to remove from each line of textfile which occurs 3 times in each line.

Answer 1

String.Replace may help you.

 if (link.OuterHtml.Contains("https://example.com"))
 {
      tw.WriteLine(link.InnerHtml.Replace("<WBR>", null));
 }