Manu Manjunath m-manu

Bengaluru (Bangalore)
07:00 (UTC +05:30)
in/manu-manjunath

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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 / 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 / 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 / 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 / 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 / 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 / HBaseDemo.java

Created July 12, 2016 12:50

Check if you are able to access HBase

	import org.apache.hadoop.conf.Configuration;
	import org.apache.hadoop.hbase.HBaseConfiguration;
	import org.apache.hadoop.hbase.KeyValue;
	import org.apache.hadoop.hbase.client.*;
	import org.apache.hadoop.hbase.ipc.HBaseRPC;
	import org.apache.hadoop.hbase.ipc.HMasterInterface;
	import org.apache.hadoop.hbase.ipc.RpcEngine;
	import org.apache.hadoop.hbase.util.Bytes;

	import java.io.IOException;

m-manu / State.java

Last active November 28, 2016 06:20

State machine with Jackson serialization

	package manu.sandbox.demos;

	import com.fasterxml.jackson.annotation.JsonValue;
	import com.google.common.collect.Sets;

	import java.util.HashMap;
	import java.util.Map;
	import java.util.Set;

	/**

m-manu / AverageCalculator.java

Created January 21, 2017 14:27

Compute statistical averages (mean, median and mode) from a stream of numbers. Optimized for 'fetch'.

	package manu.sandbox.utils;

	import java.util.*;

	public class AverageCalculator {

	private static class FrequencyComparator implements Comparator<Double> {

	private final Map<Double, Integer> histogram;

m-manu / MathUtils.java

Last active July 4, 2018 10:35

	package manu.sandbox.utils;

	import java.math.BigDecimal;
	import java.math.BigInteger;
	import java.util.ArrayList;
	import java.util.HashMap;
	import java.util.List;
	import java.util.Map;
	import java.util.concurrent.*;

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