class Program
    {
        const string script =
        @"#!/bin/bash
echo Hello
echo Hi
echo Hey
";

        static void Main(string[] args)
        {
            string text;
            if (args.Length > 0)
            {
                // This gets written as CRLF
                text = script;
            }
            else
            {
                // This gets written as LF(probably because StringBuilder figures
                // in which OS its running and does the right thing)
                var sb = new StringBuilder();
                sb.AppendLine("#!/bin/bash");
                sb.AppendLine("echo Hello");
                sb.AppendLine("echo Hi");
                sb.AppendLine("echo Hey");
                text = sb.ToString();
            }

            var path = Path.Combine(Path.GetTempPath(), $"{Guid.NewGuid().ToString("N")}.sh");
            File.WriteAllText(path, text);
            Console.WriteLine($"Text written to {path}");
        }
    }