touren

## Get current user's avatar.
export USER_HOME=~
dscl . -read $USER_HOME JPEGPhoto | tail -1 | xxd -r -p > ~/Desktop/avatar.jpg

touren

#####
# 1. Make sure the link, http://www.yourdomain.com/.well-known/acme-challenge/, works.
  ************************************************
  * For apache httpd, add below to httpd.conf
  *************************************************

    # Let's encrypt folder
    Alias "/.well-known/acme-challenge" "/letsencrypt/acme-challenge"
    <Directory "/letsencrypt/acme-challenge">
        Options Indexes

touren

#!/bin/bash

## Install cerbot, which can automatically generate, renew and deploying Let's Encrypt certificates.
sudo apt-get update
sudo apt-get install software-properties-common
sudo add-apt-repository ppa:certbot/certbot
sudo apt-get update
sudo apt-get install certbot 

## NOTE: Before proceeding with this step, ensure that your domain name points to the public IP address of the Bitnami application host.

touren

# From: https://devcenter.heroku.com/articles/ssl-certificate-self
openssl genrsa -des3 -passout pass:x -out server.pass.key 2048
openssl rsa -passin pass:x -in server.pass.key -out server.key
rm server.pass.key
openssl req -new -key server.key -out server.csr
// Common Name (e.g. server FQDN or YOUR name) []:localhost
openssl x509 -req -sha256 -days 365 -in server.csr -signkey server.key -out server.crt

touren

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:

touren

for f in `ls`
do
	xxd -l 16 $f > xxd_result
	if grep -q Exif xxd_result; then
		echo $f.jpg
		mv $f $f.jpg
	else
		if grep -q ftypqt xxd_result; then
			echo $f.mov
			mv $f $f.mov

touren

sudo apt-get install nginx

WEB_ROOT=/var/www/html
sudo rm -f ${WEB_ROOT}/*.m3u8
sudo rm -f ${WEB_ROOT}/*.ts

gst_pid=`ps -A | grep gst-launch-1. | awk '{print $1}'`
sudo kill -9 ${gst_pid}

sudo gst-launch-1.0 videotestsrc is-live=true ! clockoverlay shaded-background="true" font-desc="Sans, 24" \

touren

sudo apt-get install -y build-essential libtool autotools-dev automake
sudo apt-get install -y libsoup2.4-dev libjson-glib-dev libssl-dev autopoint gtk-doc-tools libgstreamer1.0-dev

touren

sudo apt-get install -y gstreamer1.0-tools gstreamer1.0-plugins-base gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly

gst-inspect-1.0 videotestsrc
gst-inspect-1.0  decodebin

gst-launch-1.0 filesrc location=test.mp4 ! decodebin ! fakesink

# will generate playlist.m3u8 and segment[nnnnn].ts live in current folder,
# server these files by HTTP server will get the hls stream.
gst-launch-1.0 videotestsrc is-live=true ! x264enc ! mpegtsmux ! hlssink

touren

[gui]
[user]
	email = tao@swarmnyc.com
	name = Tao Ren
[merge]
	summary = true
[alias]
	co = checkout
	br = branch
	ci = commit