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alias pserv='python -m SimpleHTTPServer $*'
alias wget='wget --trust-server-names --no-check-certificate'
alias ls='LC_COLLATE=C ls -lFha -G' #--group-directories-first --color '
alias grep='grep --color=always'
alias less='less -R'

# some more ls aliases
alias ll='ls -alF'
alias la='ls -A'
alias l='ls -CF'

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import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

public class FutureWUT {

    static void sleep(long millis) {
        try {
            Thread.sleep(millis);

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(ns clj-quasar.core
  (:require
   [co.paralleluniverse.pulsar
    [core :refer :all]
    [actors :refer :all]]))

(defsfn adder []
  (receive [from v]
           (do 
             (+ v 1))))

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Quick Tips for Fast Code on the JVM

I was talking to a coworker recently about general techniques that almost always form the core of any effort to write very fast, down-to-the-metal hot path code on the JVM, and they pointed out that there really isn't a particularly good place to go for this information. It occurred to me that, really, I had more or less picked up all of it by word of mouth and experience, and there just aren't any good reference sources on the topic. So… here's my word of mouth.

This is by no means a comprehensive gist. It's also important to understand that the techniques that I outline in here are not 100% absolute either. Performance on the JVM is an incredibly complicated subject, and while there are rules that almost always hold true, the "almost" remains very salient. Also, for many or even most applications, there will be other techniques that I'm not mentioning which will have a greater impact. JMH, Java Flight Recorder, and a good profiler are your very best friend! Mea

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#!/bin/bash

## run nc with
#   while true ; do echo -e "HTTP/1.1 200 OK\n\n $(date)" | nc -l 1500; done

#curl -XPOST -H "Partner-Id:230" --data "@-" http://localhost:1500 

while read email; do 
  curl -X POST -d "$email" http://localhost:1500; 
done << EOF

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import scala.util.parsing.combinator._
import scala.language.postfixOps

object Main {
  def main(args:Array[String]) = {
    val sc = new java.util.Scanner(System.in)

    val input = collection.mutable.ListBuffer[String]()
    while(sc.hasNextLine) {
    	input += sc.nextLine

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;;  1) first goto https://console.developers.google.com/start/api?id=gmail
;;  -- to turn on gmail api for your account
;;  2) then create a oauth consent with app name
;;  3) then add oauth clientid and download to ./clientsecret.json 
;;  4) boot run
;;  -- when running first time a browser will open to accept authorizaton

(set-env! :dependencies '[[com.google.apis/google-api-services-gmail "v1-rev34-1.21.0"]
                          [com.google.api-client/google-api-client "1.20.0"]
                          [com.google.oauth-client/google-oauth-client-jetty "1.20.0"]])

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#!/bin/bash
echo "172.217.7.228 www.miguelping.com" >> /etc/hosts

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var electron  = require("electron")
var Nightmare  = require("nightmare")

require('nightmare-inline-download')(Nightmare)

//$ node xxx.js USER PW
// ^ in some shells, that space prevents the cmd to be saved in shell history

mping

set -g default-terminal "screen-256color"

# use C-q for tmux
unbind-key C-b
set -g prefix 'C-q'

# ctrl+arrow up/down in emacs for history
set-window-option -g xterm-keys on

# Allows for faster key repetition