nlharri

Setup a Local Only SMTP Email Server (Linux, Unix, Mac)

1 - Point localhost.com to your machine

Most of programs will not accept an email using just @localhost as domain. So, edit /etc/hosts file to make the domain localhost.com point to your machine, including this content to the file:

127.0.0.1 localhost.com

2 - Install Postfix

nlharri

ld – Wading through Mac OS X linker hell

Intro

Friend: I tried looking at static linking in Mac OS X and it seems nearly impossible. Take a look at this http://stackoverflow.com/a/3801032

Me: I have no idea what that -static flag does, but I'm pretty sure that's not how you link to a library. Let me RTFM a bit.

Minutes later...

nlharri

Notes taken during learning Python

These notes were taken during learning Python programming language.

Learning resources:

• https://realpython.com/python-operators-expressions/
• https://github.com/TheAlgorithms/Python
• http://web.cs.elte.hu/~kiraly/Algoritmusok.pdf
• http://www.youtube.com/watch?v=h9wxtqoa1jY
• https://www.geeksforgeeks.org/graph-coloring-applications/

nlharri

Prerequisite

$ brew install imagemagick

This is one way to run this script:

$ time /opt/local/convertappicons/convertappicons.sh AppName.png
AppName

nlharri

Tutorial: How to connect your Cloud9 and GitHub accounts via ssh

To avoid having to enter your username and password EVERY-SINGLE-TIME you push, follow these step-by-step instructions.

1. Copy your C9 ssh key.

Go to https://c9.io/account/ssh and copy the key below "Connect to your private git repository". It's a very long string that starts with ssh-rsa and ends with your email.

2. Paste your C9 ssh key into your GitHub account

Go to https://github.com/settings/keys and click New SSH key.

nlharri

#!/user/bin/env ruby

require 'bundler/inline'
gemfile(true) do
  source 'https://rubygems.org'
  gem 'sinatra', '~> 1.4'
  gem 'bcrypt', '~> 3.1'
end

require 'sinatra/base'

nlharri

require 'sinatra'

# Listen on all interfaces in the development environment
# This is needed when we run from Cloud 9 environment
# source: https://gist.github.com/jhabdas/5945768
set :bind, '0.0.0.0'
set :port, 8080

get '/' do
    'hello world!'

nlharri

'Microsoft Excel Automation Basics
':: Create and edit an Excel File.
'---------------------------------

'create the excel object
	Set objExcel = CreateObject("Excel.Application") 

'view the excel program and file, set to false to hide the whole process
	objExcel.Visible = True 

nlharri

const { interval } = require('rxjs')
const { throttleTime } = require('rxjs/operators');

// emit value every 500 millisecond (0.5 second)
const myObserver = interval(500);

const myThrottledObserver = myObserver.pipe(throttleTime(1000));

const myDisposable = myThrottledObserver.subscribe(val => console.log(val));

nlharri

const { interval } = require('rxjs')
const { throttleTime } = require('rxjs/operators');

// emit value every 500 millisecond (0.5 second)
const myObserver = interval(500);

const myThrottledObserver = myObserver.pipe(throttleTime(1000));

myThrottledObserver.subscribe(val => console.log(val));