navin-mohan

#!/bin/bash
# This script adds a new user to the remote server , adds it to sudoers list and enables passwordless login
# follow on my blog https://www.coderew.com/computers/ssh-add-user-remotely-script/
read -p "Enter your Server IP:" serverIP #get server IP address

read -p "Enter a new username:" newusername #username for the new user
read -s -p "Enter the password for $newusername:" password #password

printf "\nEnter the root password of the server when prompted\n"

navin-mohan

/*  
 The Running Key  
 ----------------  
 The running key cryptographic algorithm is a classical cipher that uses a long key  
 such as random sentences from books to encrypt another message. It uses a table for  
 mapping the cipher text using the key and the plain-text.  
   
 get more info here  
   
   

navin-mohan

#!/bin/bash
# Script to harden ssh on ubuntu/debian server
# follow on my blog http://www.coderew.com/hardening_ssh_on_remote_ubuntu_debian_server/ 
# checkout the repo for more scripts https://github.com/nvnmo/handy-scripts

read -p "Enter your server IP:" serverIP # prompt for server IP
read -p "Enter your username(requires root privileges):" username # prompt for username
printf "\nChanging the default SSH port is one of the easiest\n things you can do to help harden you servers security. \nIt will protect you from robots that are programmed \nto scan for port 22 openings, and commence \ntheir attack."
printf "\n"
read -p "Do you want to change default SSH port?[Y/n]" -n 1 portChange

navin-mohan

/*
              Automatic Plant Watering System Using Soil Moisture Sensor
          -------------------------------------------------------------
          This is an Arduino based Plant watering system that uses a soil moisture sensor
          to monitor the garden soil and automatically water the plants when the moisture
          level falls below a threshold value. The minimum moisture level can be set using
           a Potentiometer.

           Arduino Pin Config:
            -> A0 : The analog output from the moisture sensor

navin-mohan

#include <IRremote.h>  //include the IR library

//#define DEBUG 0 //enable debug mode
#define LED_PIN 13 //the pin showing the output

int IR_pin = 4; //digital pin connected to output of the TSOP

unsigned long currentCode=0,storedCode=0; //to store the recieved code for comparison
bool outputState = 0; //stores the default output state of the lED that is OFF

navin-mohan

import cv2

def diff(img,img1): # returns just the difference of the two images
  return cv2.absdiff(img,img1)
  
def diff_remove_bg(img0,img,img1): # removes the background but requires three images 
  d1 = diff(img0,img)
  d2 = diff(img,img1)
  return cv2.bitwise_and(d1,d2)

navin-mohan

#include <iostream>
#include <stack>


using namespace std;

class bracket_matcher: public stack<char>{
	public:
		bracket_matcher(): stack<char>() { matching = 1;}
		void push_bracket(const char &arg){

navin-mohan

#include <Joystick.h>

Joystick_ Joystick(JOYSTICK_DEFAULT_REPORT_ID, 
  JOYSTICK_TYPE_MULTI_AXIS, 32, 0,
  false, false, false, false, false, false,
  true, true, false, false, false); // only rudder and throttle

const int rudderPin = A1;
const int throttlePin = A2;

navin-mohan

#!/bin/bash

cat << EOF > ~/src
deb [arch=amd64] http://mirror.cse.iitk.ac.in/debian/ jessie main contrib non-free
deb-src [arch=amd64] http://mirror.cse.iitk.ac.in/debian/ jessie main contrib non-free

deb [arch=amd64] http://mirror.cse.iitk.ac.in/debian/ jessie-updates main contrib non-free
deb-src [arch=amd64] http://mirror.cse.iitk.ac.in/debian/ jessie-updates main contrib non-free

deb [arch=amd64] http://security.debian.org/ jessie/updates main contrib non-free

navin-mohan

#!/bin/bash

if  [ -e ~/.nvm/nvm.sh ]; then
        . ~/.nvm/nvm.sh
fi
if [ -e ~/.profile ]; then
        . ~/.profile
fi
if [ -e ~/.bashrc ]; then
        . ~/.bashrc