npearce

UPDATE (March 2020, thanks @ic): I don't know the exact AMI version but yum install docker now works on the latest Amazon Linux 2. The instructions below may still be relevant depending on the vintage AMI you are using.

Amazon changed the install in Linux 2. One no-longer using 'yum' See: https://aws.amazon.com/amazon-linux-2/release-notes/

Docker CE Install

sudo amazon-linux-extras install docker
sudo service docker start

maxrodrigo

#!/bin/env bash

# Install 3rd party repositories
sudo rpm -ivh --nodeps http://mirror.centos.org/centos/7/os/x86_64/Packages/atk-2.22.0-3.el7.x86_64.rpm
sudo rpm -ivh --nodeps http://mirror.centos.org/centos/7/os/x86_64/Packages/at-spi2-atk-2.22.0-2.el7.x86_64.rpm
sudo rpm -ivh --nodeps http://mirror.centos.org/centos/7/os/x86_64/Packages/at-spi2-core-2.22.0-1.el7.x86_64.rpm

# Install dependencies
sudo yum install -y nodejs gcc-c++ make cups-libs dbus-glib libXrandr libXcursor libXinerama cairo cairo-gobject pango libXScrnSaver gtk3

dpapathanasiou

SchemaSpy is a neat tool to produce visual diagrams for most relational databases.

Here's how to use it to generate schema relationship diagrams for PostgreSQL databases:

1. Download the jar file from here (the current version is v6.1.0)

2. Get the PostgreSQL JDBC driver (unless your installed version of java is really old, use the latest JDBC4 jar file)

3. Run the command against an existing database. For most databases, the schema (-s option) we are interested in is the public one:

burke

ruby-1.9.3-p327 cumulative performance patch for rbenv

This installs a patched ruby 1.9.3-p327 with various performance improvements and a backported COW-friendly GC, all courtesy of funny-falcon.

Requirements

• rbenv
• ruby-build

You will also need a C Compiler. If you're on Linux, you probably already have one or know how to install one. On OS X, you should install XCode, and brew install autoconf using homebrew.

jasoncodes

class CreateItemChildrenCountView < ActiveRecord::Migration
  def self.up
    execute <<-SQL
      CREATE VIEW item_children_count AS
      SELECT parent_id AS item_id, COUNT(*) as children_count
      FROM items GROUP BY parent_id;
    SQL
  end

  def self.down

till

#!/bin/sh
############################
# Author: Till Klampaeckel #
# License: New BSD License #
############################

version=$1

if [ "x$version" = "x" ]; then
    echo "Usage: ./$0 5.0|5.1"

gruber

The regex patterns in this gist are intended to match any URLs,
including "mailto:foo@example.com", "x-whatever://foo", etc. For a
pattern that attempts only to match web URLs (http, https), see:
https://gist.github.com/gruber/8891611


# Single-line version of pattern:

(?i)\b((?:[a-z][\w-]+:(?:/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'".,<>?«»“”‘’]))