wikiti

# Run this command on a terminal:
pulseaudio -k && sudo alsa force-reload

wikiti

# A basic ruby implementation for the trie structure.
class Trie
  # Node class to store node information (character or tag, and action)
  class Node
    attr_reader :children, :tag
    attr_accessor :value

    def initialize(tag, parent, action = nil)
      @tag = tag
      parent.children << self if parent

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class Pubsub
  class EventBus
    attr_reader :topics

    def initialize
      @topics = {}
    end

    def publish(topic, message)
      topics[topic.to_s].to_a.each do |subscriber|

wikiti

# Run in a shell the following command:
mongodump

# A `dump` folder will be created on the current working directory.
# To compress that folder, use dump.
tar -czvf backup.tar.gz dump/

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# List databases
sudo su postgres
psql
\list

# Create a compressed backup
sudo su postgres
pg_dump -Fc <database_name> > <file>

# Example

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var toHumanSize = function(bytes) {
  var list = ['B', 'kB', 'MB', 'GB', 'TB']; // Add more units, if you need to.
  var factor = 1.0 / 1000.0;                // You can use 1024 for bits instead!
  var unit = list.shift();

  while(list.length > 0 && bytes * factor >= 1) {
    bytes = bytes * factor;
    unit = list.shift();
  }

wikiti

# This script will allow you to create an installation script, which will download a release from a GitHub repository,
# and install it on /usr/local/bin, accessible by user's PATH. The release file should include an executable, without any
# subfolders. After tweaking this file, you may now add it to your
# repository at your root as `install.sh` in the master branch. Users may run this script with:
#
#  curl -s https://raw.githubusercontent.com/<user>/<repo>/master/install.sh | sh
#

# Custom configuration

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#!/bin/bash

# ---------------------------------------
#             Local variables
# ---------------------------------------
name="<Your name>"
email="<Your email>"
dev_directory=~/Dev
work_directory=$dev_directory/Repos
bash_profile=~/.bashrc

wikiti

# Helper method to clone objects
def deep_clone(object)
  Marshal.load(Marshal.dump(object))
end

# The concept y pretty simple: imagine that you have the following matrix:
#      1  2  3  4
#     10 11 12  5
#      9  8  7  6
#