jl

find . -type d -name .git -print -execdir git gc \;

jl

find $1 -type f -executable -not -name '*.js' -exec file {} \;

# non-gnu
# find $1 -type f -perm /111 -not -name '*.js' -exec file {} \;

jl

date && sudo service ntp stop && sudo ntpd -gq && sudo service ntp start && date

jl

#!/bin/bash
if [[ -z $3 ]]; then
  echo "Usage: $(basename $BASH_SOURCE) bad-email good-email good-name"
  exit 1
fi
export BAD_EMAIL=$1
export GOOD_EMAIL=$2
export GOOD_NAME=$3
git filter-branch --env-filter '
  if [[ $GIT_AUTHOR_EMAIL = $BAD_EMAIL ]]; then

jl

# Add the following to ~/.gitconfig
# [include]
#   path=joey.gitconfig

[alias]
  st = status
  br = branch

  # Show graphical history in terminal.
  gr = log --graph --oneline --abbrev-commit --decorate --color 

jl

Notes on Grand Central Dispatch

This document assumes ARC and Obj-C as of iOS 6.1 and Xcode 4.6.

In Obj-C, GCD will automatically retain objects, including self. In C++, you have to do this yourself for EVERY non-copied object referenced by a dispatch_async block.

#include <memory>
class Foo : std::enable_shared_from_this<Foo> {

jl

// Build: mxmlc MyApp.as
// Generates: MyApp.swf
// You can debug with browser debug player plugin,
// or using the debug player projector standalone app.
package {
import flash.display.Sprite;
import flash.events.Event;

public class MyApp extends Sprite {
  public function MyApp() {