nathansmith

Resources for learning web design & front-end development:

---

ONLINE

Design

• http://52weeksofux.com
• http://thedesigncubicle.com

dopa

#!/bin/bash
# Script will output dumps for all databases using seperate files
# Derived from this post: http://www.cyberciti.biz/faq/ubuntu-linux-mysql-nas-ftp-backup-script/

USER="root"
PASSWORD="SnM1073k"
HOST="localhost"
MYSQL="$(which mysql)"
MYSQLDUMP="$(which mysqldump)"
OUTPUT_DIR="/backups/files"

romansklenar

CREATE EXTENSION tablefunc;

CREATE TABLE sales(year int, month int, qty int);
INSERT INTO sales VALUES(2007, 1, 1000);
INSERT INTO sales VALUES(2007, 2, 1500);
INSERT INTO sales VALUES(2007, 7, 500);
INSERT INTO sales VALUES(2007, 11, 1500);
INSERT INTO sales VALUES(2007, 12, 2000);
INSERT INTO sales VALUES(2008, 1, 1000);
INSERT INTO sales VALUES(2009, 5, 2500);

ElectricCoffee

package your.pkg.here

import java.security.MessageDigest
import java.nio.file.{Files, Paths}

object Generator {
  implicit class Helper(val sc: StringContext) extends AnyVal {
    def md5():    String = generate("MD5", sc.parts(0))
    def sha():    String = generate("SHA", sc.parts(0))
    def sha256(): String = generate("SHA-256", sc.parts(0))

JamesMGreene

Initialize

gitflow	git
git flow init	git init
	git commit --allow-empty -m "Initial commit"
	git checkout -b develop master

Connect to the remote repository

mneedham

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.*;
import org.apache.hadoop.io.IOUtils;

import java.io.IOException;

public class MyFileUtil {

    public static boolean copyMergeWithHeader(FileSystem srcFS, Path srcDir, FileSystem dstFS, Path dstFile, boolean deleteSource, Configuration conf, String header) throws IOException {
        dstFile = checkDest(srcDir.getName(), dstFS, dstFile, false);

yaroncon

import kafka.consumer.ConsumerConfig;
import kafka.consumer.ConsumerIterator;
import kafka.consumer.KafkaStream;
import kafka.javaapi.consumer.ConsumerConnector;
import kafka.message.MessageAndMetadata;
import org.apache.avro.Schema;
import org.apache.avro.generic.GenericDatumReader;
import org.apache.avro.generic.GenericRecord;
import org.apache.avro.io.Decoder;
import org.apache.avro.io.DecoderFactory;

diegopacheco

How to Install GO Lang on CentOS / Amazon Linux?

sudo wget https://storage.googleapis.com/golang/go1.4.2.linux-amd64.tar.gz
tar -xzf go1.4.2.linux-amd64.tar.gz 
export GOROOT=PATH_WHERE_YOU_EXTRACT_GO
export PATH=$PATH:$GOROOT/bin 
export GOBIN=$GOROOT/bin 
mkdir ~/golang/ 
export GOPATH=~/golang/ 

vasanthk

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

Frozenfire92

## Java
sudo apt-get update
sudo apt-get install default-jdk

## Scala
sudo apt-get remove scala-library scala
sudo wget http://scala-lang.org/files/archive/scala-2.12.1.deb
sudo dpkg -i scala-2.12.1.deb
sudo apt-get update
sudo apt-get install scala