Nelson Chen nelsonjchen

Displaying images in the terminal with tput and echo

Requires ImageMagick, easily available from your favorite package manager. Tested on Linux and OSX

convert image.png -resize 40 txt:-|sed -E 's/://;s/\( ? ?//;s/, ? ?/,/g;s/\)//;s/([0-9]+,[0-9]+,[0-9]+),[0-9]+/\1/g;s/255/254/g;/mage/d'|awk '{print $1,$2}'|sed -E 's/^0,[0-9]+ /print "echo;tput setaf "\;/;s/^[0-9]+,[0-9]+ /print "tput setaf ";/;s/(.+),(.+),(.+)/\1\/42.5*36+\2\/42.5*6+\3\/42.5+16/'|bc|sed 's/$/;echo -n "  ";/'|tr '\n' ' '|sed 's/^/tput rev;/;s/; /;/g;s/$/tput sgr0;echo/'|bash

5 entertaining things you can find with the GitHub Search API

Let's have some command-line fun with curl, [jq][1], and the [new GitHub Search API][2].

Today we're looking for:

The hottest repositories created in the last week.
The oldest user accounts with zero followers. (So sad.)
Issue trends by language.
Clojure projects defying convention.

I want to write Rust code on my computer (x86_64, Ubuntu 14.04) and produce arm executables. I found hints on the internet, but not a concise set of instructions on what to do. So I wrote them down exactly:

apt-get install g++-arm-linux-gnueabihf
git clone https://github.com/mozilla/rust.git
mkdir rust/build-cross
cd rust/build-cross
../configure --target=arm-unknown-linux-gnueabihf --prefix=$HOME/local/rust-cross
make -j8 && make install

Live Transcoding

This is a collection of working commandline examples to show how one could use FFMpeg and VLC for live transcoding of video streams. All examples have been tested on OSX 10.7.5 with FFMPeg 1.1.3 and VLC 2.0.5 in early 2013.

Documentation links

	# -- mode: ruby --
	# vi: set ft=ruby :

	Vagrant.configure("2") do \|config\|
	config.vm.define "vagrant-windows"
	config.vm.box = "windows2008r2"

	# You should be using the vagrant-windows Vagrant Plugin!
	# Admin user name and password
	config.winrm.username = "Administrator"

	# Researched By: Glenn 'devalias' Grant (http://devalias.net)
	# License: The MIT License (MIT) - Copyright (c) 2013 Glenn 'devalias' Grant (see http://choosealicense.com/licenses/mit/ for full license text)

	USB Complete : The Developer's Guide, Fourth Edition, Jan Axelson
	* http://www.lvr.com/usbc.htm
	* http://www.amazon.com/USB-Complete-Developers-Guide-Guides/dp/1931448086
	* https://itunes.apple.com/au/book/usb-complete-fourth-edition/id482722029?mt=11

	http://learn.adafruit.com/hacking-the-kinect

	package main

	import (
	"crypto/tls"
	"crypto/x509"
	"flag"
	"io/ioutil"
	"log"
	"net/http"
	)

	#!/bin/bash
	#
	# Check Speedtest Mini script's expiration and update it.
	#
	# DEPENDS :apt-get install swfmill html2text
	# CRON-MONTHLY :/usr/local/bin/update-speedtest-mini.sh

	##################
	################## MOVED TO: https://github.com/szepeviktor/debian-server-tools/blob/master/monitoring/update-speedtest-mini.sh
	##################

	From f5908efac9f55216d5aabdee72687b2b47f1c89c Mon Sep 17 00:00:00 2001
	From: Chang Liu <[email protected]>
	Date: Mon, 13 Apr 2015 09:36:31 +0000
	Subject: [PATCH] Add support for linux-musl in build system. Fix glibc
	assumptions in code.

	---
	autoconf/config.sub \| 7 +++++--
	lib/ExecutionEngine/RuntimeDyld/RTDyldMemoryManager.cpp \| 2 +-
	lib/Support/DynamicLibrary.cpp \| 4 ++--

 # CAM-PDF install
 cpan
 > install CAM::PDF
 # Replace text
 changepagestring.pl -o -v input.pdf srctext dsttext output.pdf
 # Ref: http://search.cpan.org/dist/CAM-PDF/bin/changepagestring.pl