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

	#!/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
	#
	#
	# version 1.0 initial release
	# version 1.1 report once every 12 hours (unless the state changes back to normal)
	#

	#!/bin/bash

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

	#!/bin/bash

	#(C) Henri Shustak 2000
	# Released Under the GNU GPLv3 or later
	# https://www.gnu.org/licenses/gpl.html

	# This script will batch process mkv files (or something else if you modify) and use handbreak (or something else)
	# in order to reduce the quaility or convert the format. It will work on these files sequentially and
	# keep tabs. If you need to carry on beyond restarts, then it would pay to alter the log file location
	# so it is not deleted between reboots.

	#!/bin/bash
	#
	# (C)2020 Henri Shustak
	# Released Under the MIT Licence
	# https://mit-license.org/
	#
	# dump the crontab

	user_name=$(whoami)
	host_name=$(hostname)

	# create a compressed archive from a number of sources
	tar -czf compressed-archive.tar.gz /srv/source1 /srv/source2 # ...

	# create a compressed archive from current directory and and preserve permissions (more important for expansion)
	tar -czpf compressed-archive.tar.gz .

	# list top level items for an archive which was compressed using the . as the driectory
	tar -tf compressed_archive.tar.gz \| awk -F "/" '{print $1 "/" $2}'\| uniq

	# list all .txt files in archive (better if you are hunting into large archives)

	# reload hyperland configuration
	hyprctl reload