using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"^Redirect\h+301\h+(\S+)\h+(\S+)";
string substitution = @"rewrite ^$1/?$ $2 permanent;";
string input = @"Redirect 301 /comment/375 http://site.com/posts/c0a323fc07
Redirect 301 /comment/2772 http://site.com/posts/76d68d4d9d
";
RegexOptions options = RegexOptions.Multiline;
Regex regex = new Regex(pattern, options);
string result = regex.Replace(input, substitution);
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx