henri henri

Screen Quick Reference

Basic

Description	Command
Start a new session with session name	`screen -S <session_name>`
List running sessions / screens	`screen -ls`
Attach to a running session	`screen -x`
Attach to a running session with name	`screen -r`

Browser Cheatsheets

This set of cheat sheets is designed to assist you with using various browsers. Little tips and trickes may not know and which I will not remember. Leave a comment or start a discussion if you have something good to add to the list.

Links

SPB Browser Notes

	#!/bin/bash
	#
	# (C)Copyright 2025
	# Henri Shustak
	# Released Under the MIT licence
	#
	# Script which takes text via standard in and generates an audio file and then plays that audio file.
	# Text to speach is processed via elevenlabs.io API. You will require a API Key to get a valid response
	#
	# Usage : echo "hello, this is the text to speach system talking to you." \| ~/bin/txt-2-speech-english.bash

	# list audio soruces # look for .minitor
	pactl list short sources

	# record in flac
	parecord --channels=2 --file-format=flac --device=your.monitor output.flac

	# play back flac
	parecord -play output.flac

	# play back with play

	#
	# ssh using the -N falg for establishing a tunnel is great.... but somtimes it is difficult to know if authentication has
	# been successful (especially if you have any kind of extended login delays setup on a remote system) and you are
	# authenticating with a password (did I type that correctly).
	#
	# this approach requires little additional setup and prevents lots of verbosity regarding the login.
	#

	# recive notification that authentication succeeded - bash
	ssh -v <user>@<remote-host> -p <port> -L <localport>:<tunnel-host>:<remoteport> -N 2> >(grep Authenticated >&2)

	#!/usr/bin/env bash
	PATH=/bin:/usr/bin
	#
	# (C)Copyright 2025 Henri Shustak
	#
	# Licence : GNU GPLv3 or later
	# https://www.gnu.org/licenses/gpl-3.0.html
	#
	#
	# About : Check if a specific port is up or down on a specific host

	def calculate_area(width, height)
	raise TypeError, "Width must be a number" unless width.is_a?(Numeric)
	raise TypeError, "Height must be a number" unless height.is_a?(Numeric)

	raise ArgumentError, "Width must be positive" unless width > 0
	raise ArgumentError, "Height must be positive" unless height > 0

	width * height
	end

	#!/usr/bin/env bash

	# memory monitor script
	# Henri Shustak
	# (C) 2022 GNU GPL v3 or later

	# basic path setup (good for most systems)
	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

	# settings (this could be improved to use percentages)...

	#!/bin/bash

	rsync "$@" 2> >(grep -v vanished)
	ret=$?
	((ret==24)) && exit 0 \|\| exit $ret

	# reload hyperland configuration
	hyprctl reload