knugie

#reduce PDF size
#-dPDFSETTINGS
#  /screen
#  /ebook
#  /printer
#  /prepress

gs -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/printer -sOutputFile=out.pdf in.pdf

knugie

#! /usr/bin/env bash
# brew install imagemagick
# brew install jpegoptim

mkdir 2048
for image in *.[jJ][pP][eE]?[gG]; do
  convert $image -resize 2048x2048\> ./2048/$image
  jpegoptim --strip-all -q --max=80 ./2048/$image
done

knugie

# <#Integer>.underscore(n) returns a string, seperating n digits by
# an underscore. n is 3 by default. This is supposed to make
# working with large numbers easier.
# example:
#   1000000000000000.underscore  #=> "1_000_000_000_000_000"
#   100_00000_00_0000_00.underscore  #=> "1_000_000_000_000_000"
#   987654321.underscore(6)  #=> "987_654321"
class Integer
  def underscore(s=3)
    self.to_s.gsub(/(\d)(?=(\d\d\d)+(?!\d))/, "\\1_")

knugie

# Skip forward/back a word with opt-arrow
# https://gist.github.com/knugie/fc9964695951b4c13ed3
bindkey -e
bindkey '\e\e[C' forward-word
bindkey '\e\e[D' backward-word

knugie

ffmpeg -i movie.mov -vcodec copy -acodec copy out.mp4

knugie

window.cancelRequestAnimFrame = ( function() {
    return window.cancelAnimationFrame          ||
        window.webkitCancelRequestAnimationFrame    ||
        window.mozCancelRequestAnimationFrame       ||
        window.oCancelRequestAnimationFrame     ||
        window.msCancelRequestAnimationFrame        ||
        clearTimeout
} )();

for (var i = 1; i < 99999; i++) {

knugie

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

knugie

xxd -p org.bin | tr -d '\n' > tmp
xxd -p -r tmp > cpy.bin

knugie

from http://www.linuxjournal.com/content/downloading-entire-web-site-wget

$ wget \
     --recursive \
     --no-clobber \
     --page-requisites \
     --html-extension \
     --convert-links \
     --restrict-file-names=windows \

--domains website.org \

knugie

require 'benchmark'
require 'open3'
require 'histogram/array'

array = Array.new(10_000_000) { rand(60) }

puts 'uniq, count:'
uniq_count = Benchmark.measure do
  array.uniq.map { |key| array.count(key) }
end