Aditya Agarwal naveenadi

Free O'Reilly books and convenient script to just download them.

Thanks /u/FallenAege/ and /u/ShPavel/ from this Reddit post

How to use:

Take the download.sh file and put it into a directory where you want the files to be saved.
cd into the directory and make sure that it has executable permissions (chmod +x download.sh should do it)
Run ./download.sh and wee there it goes. Also if you do not want all the files, just simply comment the ones you do not want.

GPG - SSH setup

Generating the master key

Here we create the master key. We want only Certify capability: we use the master key only to create the subkeys, Sign - Encrypt - Authenticate capabilities will be assigned to the subkeys.

Run the following command to start the master key generation process. Select the set your own capabilities creation process (type 8)

  ▶ gpg --full-generate-key --expert

Make sure OS is up-to-date

Install Xcode:

(To get around certain build tools that actually require Xcode and not the cli tools)

From the App Store, open it once it's done then close it

sudo xcode-select -s /Applications/Xcode.app/Contents/Developer
sudo xcodebuild -license

X11 forwarding on macOS and docker

A quick guide on how to setup X11 forwarding on macOS when using docker containers requiring a DISPLAY. Works on both Intel and M1 macs!

This guide was tested on:

macOS Catalina 10.15.4
docker desktop 2.2.0.5 (43884) - stable release
XQuartz 2.7.11 (xorg-server 1.18.4)
Macbook Pro (Intel)

Getting started with Linux kernel development

Prerequisites

The Linux kernel is written in C, so you should have at least a basic understanding of C before diving into kernel work. You don't need expert level C knowledge, since you can always pick some things up underway, but it certainly helps to know the language and to have written some userspace C programs already.

It will also help to be a Linux user. If you have never used Linux before, it's probably a good idea to download a distro and get comfortable with it before you start doing kernel work.

Lastly, knowing git is not actually required, but can really help you (since you can dig through changelogs and search for information you'll need). At a minimum you should probably be able to clone the git repository to a local directory.

	http://sample.vodobox.net/skate_phantom_flex_4k/skate_phantom_flex_4k.m3u8

	http://playertest.longtailvideo.com/adaptive/wowzaid3/playlist.m3u8

	http://cdn-fms.rbs.com.br/vod/hls_sample1_manifest.m3u8

	http://nasatv-lh.akamaihd.net/i/NASA_101@319270/index_1000_av-p.m3u8?sd=10&rebase=on

	http://content.jwplatform.com/manifests/vM7nH0Kl.m3u8

	# copied from https://github.com/tulir/mautrix-telegram/blob/master/mautrix_telegram/util/parallel_file_transfer.py
	# Copyright (C) 2021 Tulir Asokan
	import asyncio
	import hashlib
	import inspect
	import logging
	import math
	import os
	from collections import defaultdict
	from typing import Optional, List, AsyncGenerator, Union, Awaitable, DefaultDict, Tuple, BinaryIO

	REMOTE=origin
	BRANCH=$(git rev-parse --abbrev-ref HEAD)
	BATCH_SIZE=10

	# check if the branch exists on the remote
	# if git show-ref --quiet --verify refs/remotes/$REMOTE/$BRANCH; then
	# # if so, only push the commits that are not on the remote already
	# range=$REMOTE/$BRANCH..HEAD
	# else
	# # else push all the commits

	### Basic ###
	# The directory to store the downloaded file.
	dir=${HOME}/Downloads
	# Downloads the URIs listed in FILE.
	input-file=${HOME}/.aria2/aria2.session
	# Save error/unfinished downloads to FILE on exit.
	save-session=${HOME}/.aria2/aria2.session
	# Save error/unfinished downloads to a file specified by --save-session option every SEC seconds. If 0 is given, file will be saved only when aria2 exits. Default: 0
	save-session-interval=60
	# Set the maximum number of parallel downloads for every queue item. See also the --split option. Default: 5