leommoore

http://definenull.com/content/how-install-ruby-and-rails-amazon-ec2-server

To install Ruby and Rails on your Amazon EC2 server there are a few steps you need to follow, but none of them quite hard. By default ruby is already installed on your server by Amazon - check it by running $ ruby -v.

$ ruby -v
ruby 1.8.7 (2011-06-30 patchlevel 352) [i386-linux]

For this tutorial I will not be using the Ruby Version Manager - RVM. It has the power to make it easier later to change ruby versions in a contained environment.

Download the RubyGems from RubyForge. The latest version at the moment is 1.8.11.

markbates

If you're writing web applications with Ruby there comes a time when you might need something a lot simpler, or even faster, than Ruby on Rails or the Sinatra micro-framework. Enter Rack.

Rack describes itself as follows:

Rack provides a minimal interface between webservers supporting Ruby and Ruby frameworks.

Before Rack came along Ruby web frameworks all implemented their own interfaces, which made it incredibly difficult to write web servers for them, or to share code between two different frameworks. Now almost all Ruby web frameworks implement Rack, including Rails and Sinatra, meaning that these applications can now behave in a similar fashion to one another.

At it's core Rack provides a great set of tools to allow you to build the most simple web application or interface you can. Rack applications can be written in a single line of code. But we're getting ahead of ourselves a bit.

justin808

# Using these pry gems -- copy to your Gemfile
# group :development, :test do
#   gem 'awesome_print' # pretty print ruby objects
#   gem 'pry' # Console with powerful introspection capabilities
#   gem 'pry-byebug' # Integrates pry with byebug
#   gem 'pry-doc' # Provide MRI Core documentation
#   gem 'pry-rails' # Causes rails console to open pry. `DISABLE_PRY_RAILS=1 rails c` can still open with IRB
#   gem 'pry-rescue' # Start a pry session whenever something goes wrong.
#   gem 'pry-theme' # An easy way to customize Pry colors via theme files
# end

loderunner

Profiling an application in Mac OS X

Finding which process to profile

If your system is running slowly, perhaps a process is using too much CPU time and won't let other processes run smoothly. To find out which processes are taking up a lot of CPU time, you can use Apple's Activity Monitor.

The CPU pane shows how processes are affecting CPU (processor) activity:

kainam00

#!/bin/bash

# Install prerequisites
yum install -y gcc openssl-devel libyaml-devel libffi-devel readline-devel zlib-devel gdbm-devel ncurses-devel ruby-devel gcc-c++ jq git

# Import key
curl -sSL https://rvm.io/mpapis.asc | gpg2 --import -

# Install RVM
curl -sSL https://get.rvm.io | bash -s stable --ruby

oinopion

-- Create a group
CREATE ROLE readaccess;

-- Grant access to existing tables
GRANT USAGE ON SCHEMA public TO readaccess;
GRANT SELECT ON ALL TABLES IN SCHEMA public TO readaccess;

-- Grant access to future tables
ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT SELECT ON TABLES TO readaccess;

nrollr

Install MySQL on macOS Sierra

This procedure explains how to install MySQL using Homebrew on macOS Sierra 10.12

Install Homebrew

• Installing Homebrew is effortless, open Terminal and enter :
  $ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
• Note: Homebrew will download and install Command Line Tools for Xcode 8.0 as part of the installation process.

Install MySQL

At this time of writing, Homebrew has MySQL version 5.7.15 as default formulae in its main repository :

earonesty

# very simple RPC server in python

import sys, json
from http.server import BaseHTTPRequestHandler, HTTPServer
import urllib.parse as urlparse
import threading
import logging
log = logging.getLogger(__name__)

class ApiError(Exception):

tembleking

package main

import (
	"fmt"
	"log"
	"math/rand"
	"net/http"
	"time"

	"github.com/prometheus/client_golang/prometheus"

everdrone

#!/usr/bin/env bash

usage() { echo "Usage: $0 -n <bucket> -r <region> -d <directory> [-e <error-document>]" 1>&2; exit 1; }

while getopts ":n:r:d:" o; do
    case "${o}" in
        n)
            n=${OPTARG}
            ;;
        r)