84adam

NOTES FROM INTRODUCTION TO IONIC APP DEVELOPMENT
April 13, 2016

# babel JS - modern javascript compiler (and tutorials)

https://twitter.com/babeljs
https://github.com/thejameskyle/babel-handbook/blob/master/translations/en/README.md

# Ionic AppCamp

84adam

Linux Command Line Setup of OpenVPN and Private Internet Access

# source: https://support.privateinternetaccess.com/Knowledgebase/Article/View/30

* Use the following instructions to install OpenVPN via the command line in Linux. 
* This set-up has been known to work with several unsupported versions of Linux, as well as the supported Ubuntu.
* This worked on my machine running openSUSE LEAP 42.1.
* You will be prompted to enter your PIA username and password after step 6; have those ready.

1. sudo apt-get install openvpn _OR_ sudo yum ... _OR_ sudo zypper ...

84adam

[see ghost blog post: http://kernelmastery.com/install-setup-vagrant/]

Vagrant, by HashiCorp (https://www.vagrantup.com), is a command-line interface to VirtualBox and numerous other virtual machine managers. There are plugins for talking to AWS, Azure, OpenStack, and many other services.

Vagrant is great for getting a predictable virtual machine set up with a few simple commands in a consistent and quick manner.

If you have VirtualBox installed, setup is easy. Just follow the steps below to try out an Ubuntu 16.04 or CentOS 7 virtual machine.

---

84adam

Keybase proof

I hereby claim:

• I am 84adam on github.
• I am 84adam (https://keybase.io/84adam) on keybase.
• I have a public key whose fingerprint is 6ECC 36C6 5F6D E8CC F641 1C74 4D73 AC2D BC94 AAF4

To claim this, I am signing this object:

84adam

from your home folder, type "vim .bashrc"
type "i" to edit; add the following section to your bashrc file under "# User specific aliases and functions":
you can use `SHIFT+INSERT` to paste text into the terminal

---

# (optional)
# Limit directory path shown in prompt to only display current and one parent directory
# Example:  user@hostname ../firstparent/currentdir/ $

84adam

CODE:

x=<FIRSTNUM>; y=<SECONDNUM>; printf $(echo "scale=4; $x/$y * 100" | bc | cut -d . -f 1)%%

EXAMPLE:

x=55; y=85; printf $(echo "scale=4; $x/$y * 100" | bc | cut -d . -f 1)%%

OUTPUT:

84adam

#!/bin/sh

EXPECTED_SIGNATURE=$(wget -q -O - https://composer.github.io/installer.sig)
php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
ACTUAL_SIGNATURE=$(php -r "echo hash_file('SHA384', 'composer-setup.php');")

if [ "$EXPECTED_SIGNATURE" != "$ACTUAL_SIGNATURE" ]
then
    >&2 echo 'ERROR: Invalid installer signature'
    rm composer-setup.php

84adam

# create a new non-root user
adduser <new-username>
# follow prompts

# give sudo permissions to the new user
usermod -aG sudo <new-username>

# check groups for new user
groups <new-username>

84adam

import datetime as dt
import requests
import io
import pandas as pd
import matplotlib.pyplot as plt
from matplotlib.pyplot import figure
from matplotlib import ticker
from matplotlib.ticker import (MultipleLocator, FormatStrFormatter, AutoMinorLocator)
%matplotlib inline

84adam

set wrap
set number
set colorcolumn=80
syntax on
set tabstop=4
set softtabstop=4
set shiftwidth=4
set expandtab

let g:go_highlight_trailing_whitespace_error=0