purmac

$resp =Invoke-WebRequest http://www.mit.edu/~ecprice/wordlist.10000 -UseBasicParsing
$wordList = $resp.content.split("`n")

for ($a = 0; $a -lt 35; $a++) {
    $RandomWord =  Get-Random $wordList
    $RandomQuestion = Get-Random -InputObject("What+is+","Definition+of+","Pronunciation+of+","Thesaurus+","Examples+of+","prefixes+for+","suffixes+for+")
    Start-Process microsoft-edge:http://www.bing.com/search?q=$RandomQuestion$RandomWord -WindowStyle Minimized
    start-sleep -Milliseconds 1500
}
start-sleep -Milliseconds 2000

purmac

Exporting (iCloud) Keychain and Safari credentials to a CSV file

After my dad died, I wanted to be able to have access any of his online accounts going forward. My dad was a Safari user and used iCloud Keychain to sync his credentials across his devices. I don’t want to have to keep an OS X user account around just to access his accounts, so I wanted to export his credentials to a portable file.

This is the process I used to create a CSV file of his credentials in the format “example.com,user,pass”. This portable format would be pretty easy to import into 1Password or Safari in the future.

The way I went about this isn’t great; it opens up more opportunities for apps to control one’s Mac through Accessibility APIs, it writes plaintext passwords to disk, and it could use some cleaning up. A better approach might leverage the security command line tool that ships with OS X. That said, I found this method to be a fun illustration of what’s possible us

purmac

#!/bin/bash

# A script to set up a new mac. Uses bash, homebrew, etc.

# Focused for ruby/rails development. Includes many utilities and apps:
# - homebrew, rvm, node
# - quicklook plugins, terminal fonts
# - browsers: chrome, firefox
# - dev: iterm2, sublime text, postgres, chrome devtools, etc.
# - team: slack, dropbox, google drive, skype, etc

purmac

var data = sc.parallelize(Seq(("A", 2), ("A", 4), ("B", 2), ("Z", 0), ("B", 10)))
// data: org.apache.spark.rdd.RDD[(java.lang.String, Int)] = ParallelCollectionRDD[31] at parallelize at <console>:12

val avgValue = data.mapValues((_, 1)
        .reduceByKey((x, y) => (x._1 + y._1, x._2 + y._2))
        .mapValues{ case (sum, count) => (1.0 * sum) / count }
        .collectAsMap()
// avgValue: scala.collection.Map[java.lang.String,Double] = Map(Z -> 0.0, B -> 6.0, A -> 3.0)

purmac

componentDidMount() {
  fetch(URL, { method: "get" })
    .then(res => res.json())
    .then(result => this.setWeatherData(result))
    .catch(err => err);
}

purmac

(function(console){

console.save = function(data, filename){

    if(!data) {
        console.error('Console.save: No data')
        return;
    }

    if(!filename) filename = 'console.json'

purmac

% Give the file name
% Open the file and get the file descriptor
filename = "PrintingPath01.txt";
fd = fopen(filename, 'r');

linepattern = "#####\s*Line\s\d+"; % match #### Line {num}
nodepattern = "\s\d+\s"; % match " {num} "
coordpattern = "[-+]?[0-9]*\.?[0-9]+"; % match float number
line_count = 0;
data = {};

purmac

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

purmac

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

purmac

function Counter({value}) {
  return <h1>{value}</h1>
}

function Counter2(props) {
  return <h1>{props.value}</h1>
}

const render = () => {
  ReactDOM.render(<Counter value=1 />, document.getElementById('root'));