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Fixing npm On Mac OS X for Homebrew Users

Installing node through Homebrew can cause problems with npm for globally installed packages. To fix it quickly, use the solution below. An explanation is also included at the end of this document.

Solution

This solution fixes the error caused by trying to run npm update npm -g. Once you're finished, you also won't need to use sudo to install npm modules globally.

Before you start, make a note of any globally installed npm packages. These instructions will have you remove all of those packages. After you're finished you'll need to re-install them.

vpotap

#!/bin/bash

# Slack notification script for Munin
# Mark Matienzo (@anarchivist)
#
# To use:
# 1) Create a new incoming webhook for Slack
# 2) Edit the configuration variables that start with "SLACK_" below
# 3) Add the following to your munin configuration:
#

vpotap

Installing mysql 5.7 on centos 6

1. download yum repo
	wget http://dev.mysql.com/get/mysql57-community-release-el6-7.noarch.rpm

2. install yum repo
	yum -y localinstall mysql57-community-release-el6-7.noarch.rpm

3. verify yum repo
	yum repolist enabled | grep "mysql.*-community.*"

vpotap

Share Counts

I have always struggled with getting all the various share buttons from Facebook, Twitter, Google Plus, Pinterest, etc to align correctly and to not look like a tacky explosion of buttons. Seeing a number of sites rolling their own share buttons with counts, for example The Next Web I decided to look into the various APIs on how to simply return the share count.

If you want to roll up all of these into a single jQuery plugin check out Sharrre

Many of these API calls and methods are undocumented, so anticipate that they will change in the future. Also, if you are planning on rolling these out across a site I would recommend creating a simple endpoint that periodically caches results from all of the APIs so that you are not overloading the services will requests.

Twitter

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How to setup Let's Encrypt for Nginx on Ubuntu 16.04 (including IPv6, HTTP/2 and A+ SLL rating)

There are two main modes to run the Let's Encrypt client (called Certbot):

• Standalone: replaces the webserver to respond to ACME challenges
• Webroot: needs your webserver to serve challenges from a known folder.

Webroot is better because it doesn't need to replace Nginx (to bind to port 80).

In the following, we're setting up mydomain.com. HTML is served from /var/www/mydomain, and challenges are served from /var/www/letsencrypt.

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#! /bin/bash
### BEGIN INIT INFO
# Provides:          yourapp
# Required-Start:    nginx
# Required-Stop:
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: The main django process
# Description:       The gunicorn process that receives HTTP requests
#                    from nginx

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package main

import (
	"database/sql"
	"strconv"
	"log"
	"net/http"
	"fmt"
	"bytes"
	"gopkg.in/gin-gonic/gin.v1"

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# Edit ~/.bash_profile 

export GOPATH=/Users/username/go
export PATH=$GOPATH/bin:$PATH

# Reload profile : source ~/.bash_profile

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#!/bin/bash

# remove exited containers:
docker ps --filter status=dead --filter status=exited -aq | xargs -r docker rm -v
    
# remove unused images:
docker images --no-trunc | grep '<none>' | awk '{ print $3 }' | xargs -r docker rmi

# remove unused volumes:
find '/var/lib/docker/volumes/' -mindepth 1 -maxdepth 1 -type d | grep -vFf <(

vpotap

/**
 * Filters an array of objects with multiple criteria.
 *
 * @param  {Array}  array: the array to filter
 * @param  {Object} filters: an object with the filter criteria as the property names
 * @return {Array}
 */
function multiFilter(array, filters) {
  const filterKeys = Object.keys(filters);
  // filters all elements passing the criteria