Andrew St Clair andrew-stclair

Converting sequentially named images into a video

Step 1: Rename the files in sequence

rename 'our $i; s/_.*/sprintf("_%03d.png", $i++)/e' *.png

This command assumes the file name followes something like image_001.png or IMG_001.png etc...

It will then change the numbers at the end to start from 001 to however many images there are without skipping a number

RTTTL Ringtones

Sea Shanty 2

Sea Shanty 2: d=16,o=5,b=100: 16a, 16p, 16e, 16d, 8c#, 16p, 16c#, 16d, 16e, 16f#, 16g#, 8e, 8p, 16f#, 16p, 16e, 16d, 16c#, 16p, 16c#, 16p, 16b4, 16p, 16c#, 16p, 8d, p

Automating Ubuntu Pro

I dont garantee these will always work, nor are they a good way of achieving some level of automation for ubuntu pro, but they worked at time of writing.

Run commands when ubuntu pro is activated

Checks if the output of the pro status command contains the string "Valid until"

# If Ubuntu Pro is Activated

LUKS Encrypted disks scripts

The following are scripts that can help with the use of LUKS encrypted disks, though they are very rudementry and require sudo.

The onlt script you will need is the crypt-format script, it's what creates the encrypted partition or file, the others just mount and unmount, which gnome can do on it's own (Other might be able to as well, but i have tested gnome)

Usage

Optional: Create mountable image

Use a GPG key for SSH authentication

These steps have been tested on MacOS. Linux should be similar if not the same. Good luck on Windows

Why would i do this?

If you are already using a GPG key to sign git commits or packages, it's one less key to securely backup.
GPG keys can be stored on OpenPGP Smart Cards like the YubiKey

	-----BEGIN PGP PUBLIC KEY BLOCK-----

	mQINBGWXbFMBEADAcCiOGQDOlVFUkoyNX4P7jJHZ4AMaHXKKfuG5gv92KbLBvGfU
	sG1R+i32h6rmtyMpIjp4vLLxOAPfYIuGdaY30ChVTvRH9m+hP2Ky5sB+LJSrwX9j
	Jgeh3H4TRm2EqslnY/84HyxxGJRIySebOLi15/O2vROdneTzVItNeaS3J2XQvDaW
	HJkGLd99IK/bYQnyzCaiTDcvmwQ7bkJUr7ezrOaZmA15X6jyJEs6UAxsBNsv3780
	pljDxnZ52u0yItMW//ejw5k/vsKuqBGEv4IiXsbQfLZwnjA1x2VDGZ2a9s4MZRjM
	JkI1TcYC64psPB01A2RcRXZTDdma7LV5VNHAtMFxdeFt12HKb2096734jYqP6Stg
	erJF/RcBNir/GK92mzu4fdxO4rDPGy5bliDofsmuA3x3LV4sfK/eoO3hv9Q5Cd+F
	5vFxA3RN3KjD79QhjSyD5us9nSuEg5MBDHsWTGm6jXXNONPSA+/pKwqwgyVvzP8K

	#!/bin/sh

	gpg --dearmor -o /etc/apt/trusted.gpg.d/andrew-stclair-keyring.gpg << EndOfMessage
	-----BEGIN PGP PUBLIC KEY BLOCK-----

	mQINBGWXbFMBEADAcCiOGQDOlVFUkoyNX4P7jJHZ4AMaHXKKfuG5gv92KbLBvGfU
	sG1R+i32h6rmtyMpIjp4vLLxOAPfYIuGdaY30ChVTvRH9m+hP2Ky5sB+LJSrwX9j
	Jgeh3H4TRm2EqslnY/84HyxxGJRIySebOLi15/O2vROdneTzVItNeaS3J2XQvDaW
	HJkGLd99IK/bYQnyzCaiTDcvmwQ7bkJUr7ezrOaZmA15X6jyJEs6UAxsBNsv3780
	pljDxnZ52u0yItMW//ejw5k/vsKuqBGEv4IiXsbQfLZwnjA1x2VDGZ2a9s4MZRjM

	#!/bin/bash

	echo "Installing required software"
	apt-get update
	apt-get install groff man manpages manpages-dev -y

	echo "Creating output directory if it does not exist"
	SEARCH_DIR="/usr/share/man/"
	OUT_DIR="/opt/man"
	mkdir -p $OUT_DIR

	"""Randomness Validator"""

	# How many bytes to read
	BYTES_READ = 50000000

	# Devices to check
	DEVICES = [
	"/dev/random",
	"/dev/urandom"
	]

	# Variables
	storage = {
	'prompt': "❯",
	'username': "root",
	'hostname': "ubuntu"
	}


	# Default 'command not found' command
	def h_noop(_):