using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication3
{
    class Program
        {
        static void Main()
        {
            string input = @"c:temptest.txt";
            Cawk.Execute(input);
        }
    }
}

using System;
using System.Collections.Generic;
using System.IO;

namespace ConsoleApplication3
{
    public static class Cawk
    {
        public static IEnumerable<Dictionary<string, object>> Execute(StreamReader input)
    {
        Dictionary<string, object> row = new Dictionary<string, object>();

        string line;
        //string[] lines = File.ReadAllLines(path);

        //read all rows
        while ((line = input.ReadLine()) != null)
        {

Cawk.Execute(new StreamReader(@"c:temptest.txt"))

using (var sr = new StreamReader(@"c:temptest.txt"))
{
    Cawk.Execute(sr);
}

var sr = new System.IO.StreamReader(@"c:temptest.txt");
Cawk.Execute(sr);

Cawk.Execute(File.OpenText(@"c:temptest.txt"));

string input = @"c:temptest.txt";
Cawk.Execute(new System.IO.StreamReader(input));