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Install Powerline fonts for Z shell

Please note: there is an APT package called "fonts-powerline" which is tested and working for Ubuntu 20.04 which achieves the same outcome. Try "sudo apt install fonts-powerline"

If you're using Z Shell and a special prompt theme designed with Powerline fonts in mind, you'll need to install them on your machine. These are the most clear and cut-down instructions that I've found to work with Ubuntu 16.10 (also confirmed working for 17.04, 17.10, 18.04, 19.10) and all credit goes to renshuki's Ubuntu 14.04 + Terminator + Oh My ZSH with Agnoster Theme gist. I've extracted just the Powerline font instructions - my personal setup uses Prezto instead of Oh My ZSH (not included here).

Get the font and config files

cd ~

Useful Examples of ffmpeg and GNU parallel on the command-line:

Transcoding FLAC music to Opus:

ffmpeg is a highly useful application for converting music and videos. However, audio transcoding is limited to a a single core. If you have a large FLAC archive and you wanted to compress it into the efficient Opus codec, it would take forever with the fastest processor to complete, unless you were to take advantage of all cores in your CPU.

parallel 'ffmpeg -v 0 -i "{}" -c:a libopus -b:a 128k "{.}.opus"' ::: $(find -type f -name '*.flac')

Transcoding Videos to VP9:

	000000 Officially Xerox
	000001 SuperLAN-2U
	000002 BBN (was internal usage only, no longer used)
	000003 XEROX CORPORATION
	000004 XEROX CORPORATION
	000005 XEROX CORPORATION
	000006 XEROX CORPORATION
	000007 XEROX CORPORATION
	000008 XEROX CORPORATION
	000009 powerpipes?

	ftp://ftp.intron.ac/
	ftp://ftp.ox.ac/
	ftp://ftp.robelle3000.ai/
	ftp://ftp.linux.org.ar/
	ftp://ftp.secyt.gov.ar/
	ftp://eclipt.uni-klu.ac.at/
	ftp://ftp.ad.or.at/
	ftp://ftp.adis.at/
	ftp://ftp.ai.univie.ac.at/
	ftp://ftp.cg.tuwien.ac.at/

	/**
	* Lightweight script to detect whether the browser is running in Private mode.
	* @returns {Promise<boolean>}
	*
	* Live demo:
	* @see https://output.jsbin.com/tazuwif
	*
	* This snippet uses Promises. If you want to run it in old browsers, polyfill it:
	* @see https://cdn.jsdelivr.net/npm/es6-promise@4/dist/es6-promise.auto.min.js
	*

	#!/bin/bash

	# Tom Hale, 2016. MIT Licence.
	# Print out 256 colours, with each number printed in its corresponding colour
	# See http://askubuntu.com/questions/821157/print-a-256-color-test-pattern-in-the-terminal/821163#821163

	set -eu # Fail on errors or undeclared variables

	printable_colours=256

	## some useful aliases
	alias ls "ls -h"
	alias dir ls
	alias less more
	alias zless zmore
	alias bzless bzmore
	alias mirror "mirror -v"
	alias sync "mirror -R -v -n"
	alias reconnect "close; cache flush; cd ."
	alias edit "eval -f \"get $0 -o ~/.lftp/edit.tmp.$$ && shell \\\"cp -p ~/.lftp/edit.tmp.$$ ~/.lftp/edit.tmp.$$.orig && $EDITOR ~/.lftp/edit.tmp.$$ && test ~/.lftp/edit.tmp.$$ -nt ~/.lftp/edit.tmp.$$.orig\\\" && put ~/.lftp/edit.tmp.$$ -o $0; shell rm -f ~/.lftp/edit.tmp.$$*\""

	These commands are based on a askubuntu answer http://askubuntu.com/a/581497
	To install gcc-6 (gcc-6.1.1), I had to do more stuff as shown below.
	USE THOSE COMMANDS AT YOUR OWN RISK. I SHALL NOT BE RESPONSIBLE FOR ANYTHING.
	ABSOLUTELY NO WARRANTY.

	If you are still reading let's carry on with the code.

	sudo apt-get update && \
	sudo apt-get install build-essential software-properties-common -y && \
	sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y && \

	Note for newcomers:

	In the shortcuts below, "C" stands for CTRL and "A" stands for "ALT". This is a convention
	used in the Midnight Commander documentation and was kept here.

	You can also use "ESC" instead of "ALT", which is useful on Macbooks.

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