Vadim Gusev vadimii

Creating an Ubuntu Core Series 16 image

On VMWare fusion, running an Ubuntu Xenial VM, which has a copy of your OS X public SSH key -- the script to build the image will add it to the generated image -- grab the script at https://github.com/zyga/devtools/blob/master/ubuntu-image to create a new image:

./ubuntu-image.sh --developer-mode pc

Convert .img to .vmdk

qemu-img convert pc-devel.img -O vmdk snappy.vmdk

ffmpeg

Converting Audio into Different Formats / Sample Rates

Minimal example: transcode from MP3 to WMA:
ffmpeg -i input.mp3 output.wma

You can get the list of supported formats with:
ffmpeg -formats

You can get the list of installed codecs with:

Effective Modern CMake

Getting Started

For a brief user-level introduction to CMake, watch C++ Weekly, Episode 78, Intro to CMake by Jason Turner. LLVM’s CMake Primer provides a good high-level introduction to the CMake syntax. Go read it now.

After that, watch Mathieu Ropert’s CppCon 2017 talk Using Modern CMake Patterns to Enforce a Good Modular Design (slides). It provides a thorough explanation of what modern CMake is and why it is so much better than “old school” CMake. The modular design ideas in this talk are based on the book [Large-Scale C++ Software Design](https://www.amazon.de/Large-Scale-Soft

Mute volume

osascript -e "set volume with output muted"

Unmute volume

osascript -e "set volume without output muted"

	#!/bin/bash
	tmp=$(mktemp -d)
	pushd "$tmp"

	iso=/Users/lloeki/Downloads/archlinux-2015.08.01-dual.iso
	echo "fixing disk"
	dd if=/dev/zero bs=2k count=1 of=tmp.iso
	dd if=$iso bs=2k skip=1 >> tmp.iso

	echo "mounting disk"

	// Refrence from: https://gist.github.com/beevelop/a0f2c76e79610dca01550c9a93f83876
	// Copy following scripts in the developer console of page included markdown content you want to print:

	(function () {
	var $ = document.querySelector.bind(document);
	$('#readme').setAttribute('style', 'position:absolute;top:0;left:0;right:0;bottom:0;z-index:100;background-color:white');
	$('#readme>article').setAttribute('style', 'border: none');
	$('body').innerHTML = $('#readme').outerHTML;
	window.print();
	})();