.Net and Python Integration

using System;
using System.Diagnostics;
using System.IO;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

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

        private void run_cmd()
        {

            string fileName = @"C:\sample_script.py";

            Process p = new Process();
            p.StartInfo = new ProcessStartInfo(@"C:\Python27\python.exe", fileName)
            {
                RedirectStandardOutput = true,
                UseShellExecute = false,
                CreateNoWindow = true
            };
            p.Start();

            string output = p.StandardOutput.ReadToEnd();
            p.WaitForExit();

            Console.WriteLine(output);

            Console.ReadLine();

        }
    }    
}

Python Program
print "Python C# Test"
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Forward Internet In Lunux or NAT

  1. sudo ifconfig eth0 address 10.42.0.1
  2. echo 1 > /proc/sys/ipv4/ipforward
  3. sudo iptables -t nat -A POSTROUTING -s 10.42.0.0/24 ! -d 10.42.0.0/24 -j MASQUERADE
  4. Install dnsmasq -> sudo apt-get install dnsmasq
  5. configure dnsmasq.config as
    • sudo nano /etc/dnsmasq.conf
      • interface=eth0
      • dhcp-range=10.42.0.100,10.42.0.200

Release unused memory in Ubuntu

sometime we think that RAM is filled with running processes. But actually more over its cached by the processes which has finished its execution. We can release this cache RAM using superuser command.

first check the status of RAM by this command:

“free”

"echo 3 > /proc/sys/vm/drop_caches"

Now again check RAM using free command. You will observe too much RAM is released.