rfong rfong

Processing JSON using jq

jq is useful to slice, filter, map and transform structured json data.

Installing jq

On Mac OS

brew install jq

To copy database from one heroku app to another -

heroku pg:backups capture [database_name]
heroku pg:backups restore $(heroku pg:backups public-url --app source_app) DATABASE_URL --app target_app

You can refer to https://devcenter.heroku.com/articles/heroku-postgres-backups for more information.

To copy database from local to heroku - Dump your local database in compressed format using the open source pg_dump tool: PGPASSWORD=mypassword pg_dump -Fc --no-acl --no-owner -h localhost -U myuser mydb > mydb.dump where myuser is your database username and mydb is the database name.

Remove MySQL completely

Open the Terminal
Use mysqldump to backup your databases
Check for MySQL processes with: ps -ax | grep mysql
Stop and kill any MySQL processes
Analyze MySQL on HomeBrew:
```
brew remove mysql
```

I heard from GitHub Two-Factor Authentication](https://github.com/blog/1614-two-factor-authentication) nearly a couple of days ago when I was reading my RSS feed. I enabled it and couldn' push to any of my repositories anymore. Learn in this blog post how to fix it.

Two-Factor Authentication

"Is a process involving two stages to verify the identity of an entity trying to access services in a computer or in a network". Github solves this authentication with sending an SMS to a device which wants to push to their platform.

	#!/usr/bin/env python
	from itertools import combinations, chain
	import numpy as np
	from pyhull.convex_hull import ConvexHull
	from stl import Mode
	from stl.mesh import Mesh


	def subdivide(shape):
	''' Take a triangulated sphere and subdivide each face. '''

	%%-----------------------------------------------------------------------
	%% Make your own quadrille, graph, hex, etc paper!
	%% Uses the pgf/TikZ package for LaTeX, which should be part of
	%% any modern TeX installation.
	%% Email: [email protected]
	%% Twitter: @mcnees
	%%-----------------------------------------------------------------------

	\documentclass[11pt]{article}

	"""
	Minimal character-level Vanilla RNN model. Written by Andrej Karpathy (@karpathy)
	BSD License
	"""
	import numpy as np

	# data I/O
	data = open('input.txt', 'r').read() # should be simple plain text file
	chars = list(set(data))
	data_size, vocab_size = len(data), len(chars)

	<html>
	<head>
	<script src="//cdnjs.cloudflare.com/ajax/libs/underscore.js/1.4.2/underscore-min.js"></script>
	<script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
	<script src="//cdnjs.cloudflare.com/ajax/libs/modernizr/2.6.2/modernizr.min.js"></script>
	<script src="//ajax.cdnjs.com/ajax/libs/json2/20110223/json2.js"></script>

	<!--
	TODO:

	#!/usr/bin/env python
	#
	# AccessDump.py
	# A simple script to dump the contents of a Microsoft Access Database.
	# It depends upon the mdbtools suite:
	# http://sourceforge.net/projects/mdbtools/

	import sys, subprocess, os

	DATABASE = sys.argv[1]