rajeevkannav

FROM rails:4.2.3

MAINTAINER Renato Filho <renatosousafilho@gmail.com>

ENV HOME /home/app
ENV RAILS_ENV development

RUN useradd -m -s /bin/bash app

RUN gem install -N bundler

rajeevkannav

PostgreSQL (10.4 (Ubuntu 10.4-2.pgdg16.04+1)) Ubuntu 16.04.4 LTS

Installation

https://www.postgresql.org/download/linux/ubuntu/

Create the file /etc/apt/sources.list.d/pgdg.list and add a line for the repository

deb http://apt.postgresql.org/pub/repos/apt/ xenial-pgdg main

rajeevkannav

#!/bin/bash
# Ubuntu Developer Script For pdf2htmlEx
# Created by Rajeev Kannav Sharma
# http://rajeevkannav.github.io/
#
#
# Downloads and configures the following:
#
#   CMake, pkg-config
#   GNU Getopt

rajeevkannav

Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

###Array ####Definition:

• Stores data elements based on an sequential, most commonly 0 based, index.
• Based on tuples from set theory.

rajeevkannav

1. Downloading

32 bits version

$ wget https://get.popcorntime.sh/build/Popcorn-Time-0.3.10-Linux-32.tar.xz -O popcorntime.tar.xz

64 bits version

rajeevkannav

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?

rajeevkannav

require 'mina/rails'
require 'mina/git'
require 'mina/puma'
require 'mina/rvm'
require 'yaml'

set :user, 'deploy'
set :port, '22'
set :forward_agent, true
set :term, :system

rajeevkannav

module ActiveAdmin
  module Views
    class PaginatedCollection < ActiveAdmin::Component

      protected

      # modified from will_paginate
      def page_entries_info(options = {})
        if options[:entry_name]
          entry_name = options[:entry_name]

rajeevkannav

JavaScript

Learn

Linux

Help/Cheat

Keyboard code information http://keycode.info/

Ruby

rajeevkannav

require 'json'
x = JSON.parse('{
    "@context": [
        "https://opencontext.org/contexts/search.json",
        "http://geojson.org/geojson-ld/geojson-context.jsonld"
    ],
    "id": "http://opencontext.org/subjects-search/Turkey/Kenan+Tepe.json",
    "label": "Open Context API",
    "dcmi:modified": "2018-01-31T03:20:58Z",
    "dcmi:created": "2012-06-30T00:00:00Z",