cdeath

Extract stuff from .mkv with ffmpeg

Full documentation: https://ffmpeg.org/ffmpeg.html

List all tracks

ffmpeg -i input.mkv

track indexes are zero-based.

Track types

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Command line stuff

find (and optionally delete) files or folders

mdfind ''
find . -name ''
find . -iname ''
find . -name '' -type f -delete
find . -name '' -type d -delete

cdeath

Tidying up your mac

softwareupdate

softwareupdate -i -a --force --agree-to-license
sudo softwareupdate -i -a -R --force --agree-to-license

homebrew

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Force Incognito on Chromium based browsers

Chrome

defaults write com.google.Chrome IncognitoModeAvailability -integer 2
defaults delete com.google.Chrome IncognitoModeAvailability

Brave

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/*
* euromillions generator code golf. unique numbers. in javascript. because.
* change the parameters for games other than euromillions.
* paste the code in the browser console and press enter.
*/

// non "RFC compliant" version (does not allow collisions between numbers and stars)
for(a=[],r=_=>Math.ceil(Math.random()*(i<5?50:12)),i=0;i<7;i++){n=r();while(a.includes(n))n=r();a[i]=n};a;

// zero fucks given (globals, no sorting)

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macOS stuff

set/change/disable firmware password

sudo firmwarepasswd -setpasswd
sudo firmwarepasswd -check
sudo firmwarepasswd -verify
sudo firmwarepasswd -delete

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Password (Re)Generator

TL;DR; A keyed-hash string encoding function.
Useful for setting strong passwords that you will not remember but can regenerate.

Use any hash function you like.

HMAC with BASE64 (no special chars)

echo -n "username" | openssl sha256 -hmac "password" | cut -d " " -f 2 | base64 | cut -c 1-64