using System;

using System.IO;

using System.Linq;

using System.Text.RegularExpressions;

public class Program

{

    public static void Main()

    {

        string commandLine = @"msiexec /i 'Igor Pavlov_7-Zip_24.06.msi' /qn /L*V %temp%\7-Zip\24.06\7-Zip_24.06_Install.log";

        string msiPattern = @"msiexec(?:\s+[^\s]*)*\s+/i\s+['""]?([^'""]+\.msi)['""]?";

​

​

        Match msiMatch = Regex.Match(commandLine, msiPattern, RegexOptions.IgnoreCase);

        if (msiMatch.Success)

        {

            Console.WriteLine("Pass");

        }

        else

        {

            Console.WriteLine("Fail");

        }

        string logPattern = @"(?:/l[\*+!iwearucmopvx]*|/log)\s+[""']?([^\s""'<>:|?*]+\.\w{2,6})[""']?";

        Match logMatch = Regex.Match(commandLine, logPattern, RegexOptions.IgnoreCase);

        string logFilePath = logMatch.Groups[1].Value;

        logFilePath = SanitizeLogPath(logFilePath);

        Console.WriteLine(logFilePath);     

    }

    private static string SanitizeLogPath(string path)

    {

        if (string.IsNullOrWhiteSpace(path))

        {

            return path;

        }

​

        char[] invalidChars = Path.GetInvalidFileNameChars();

        string sanitizedPath = new string(path

            .Where(c => !invalidChars.Contains(c)) 

            .ToArray());

​

        return sanitizedPath;

    }

}