Jonathan Melly jonathanMelly

How to Convert iBook EPUBs to standard EPUBs

iBooks EPUBs actually show up on macOS as folders. If you need the actual file you can use the above script to convert your iBook directory of files to a destination directory.

The path of iBook files as of macOS 10.15.7 is: /Users/${USER}/Library/Mobile Documents/iCloud~com~apple~iBooks/Documents

Usage

CPU

L1 cache reference 0.5 ns
Branch mispredict 5 ns (on a bad CPU architecture you're pretty much screwed)
L2 cache reference 7 ns
Mutex lock/unlock 25 ns
Main memory reference 100 ns
Compress 1K bytes with Zippy 3,000 ns
Send 2K bytes over 1 Gbps network 20,000 ns
Read 1 MB sequentially from memory 250,000 ns

	<!DOCTYPE html>
	<html lang="en">

	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>My Angular from Scratch</title>
	<style>
	.my-component {
	font-family: Arial, sans-serif;

	sudo mkdir -m 0700 /var/www/.ssh
	sudo chown -R www-data:www-data /var/www/.ssh
	sudo -u www-data ssh-keygen (empty passphrase)

	# On Github, paste public key into "Deploy keys"

	sudo -u www-data bash
	cd /path/to/repo
	git clone ...

	#!/bin/bash

	# Set defaults if not provided by environment
	CHECK_DELAY=${CHECK_DELAY:-5}
	CHECK_IP=${CHECK_IP:-8.8.8.8}
	PRIMARY_IF=${PRIMARY_IF:-eth0}
	PRIMARY_GW=${PRIMARY_GW:-1.2.3.4}
	BACKUP_IF=${BACKUP_IF:-eth1}
	BACKUP_GW=${BACKUP_GW:-2.3.4.5}