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```docker
# debian jessie or debian 8
FROM debian:jessie

# Fix Repositories from Debian Jessie
RUN echo "deb [check-valid-until=no] http://archive.debian.org/debian jessie main" > /etc/apt/sources.list.d/jessie.list && \
    echo "deb [check-valid-until=no] http://archive.debian.org/debian jessie-backports main" > /etc/apt/sources.list.d/jessie-backports.list && \
    sed -i '/deb http:\/\/deb.debian.org\/debian jessie-updates main/d' /etc/apt/sources.list && \
    sed -i '/deb http:\/\/deb.debian.org\/debian jessie main/d' /etc/apt/sources.list && \
    sed -i '/deb http:\/\/security.debian.org\/debian-security jessie\/updates main/d' /etc/apt/sources.list && \

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Flexbox Notes

Flex

Father Properties

• Flex Direction: row | column

  Colocar todos los elementos en la direccion que se les indica. Si es row todos los elementos estaran colocados en una fila y si es column todos los elementos estaran en una columna.

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List Containers

docker ps

Enter Running Container Bash

docker exec -it [container-id] bash

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Vagrant.configure("2") do |config|
    config.vm.provider "virtualbox" do |v|
        v.name = "machine-name-virtualbox"
    end
    
    config.vm.synced_folder ".", "/vagrant", disabled: true
    config.vm.provider "virtualbox" do |v|
        v.memory = 2048
        v.cpus = 2
    end

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Postgres Users

Create User

CREATE USER mynewuser PASSWORD 'mynewpassword';

Drop User

DROP USER mynewuser;

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Update Gradle Version on React Native Project 0.56.0

build.gradle file

buildscript {
    repositories {
        ...
    }
    dependencies {
 classpath 'com.android.tools.build:gradle:3.1.0'

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React Native Tutorials

• React Native - Getting Started

React Native Libraries

Maps

• React Native Maps

Navigations and Screen Control

• React Native Navigation