StefanHamminga’s gists

StefanHamminga / grub.cfg

Created March 21, 2019 12:05

	# HiKey970 grub config enabling "grub-reboot 'Experimental kernel'" to one-time boot testing kernels.

	if [ -s $prefix/grubenv ]; then
	set have_grubenv=true
	load_env
	fi
	if [ "${next_entry}" ] ; then
	set default="${next_entry}"
	set next_entry=
	save_env next_entry

StefanHamminga / compile++.sh

Created November 21, 2017 07:50

Bash function to build, sanitise, debug and PGO profile a single source C++ file such as a (header-only) library test file

	function compile++ {
	local outfn="${1%.*}"
	ionice -c 3 \
	nice -n 19 \
	g++ \
	-std=gnu++17 \
	-pipe \
	-march=haswell \
	-mtune=skylake \
	-O3 \

StefanHamminga / print-png-label-to-networked-brother-label-printer.sh

Created December 22, 2016 14:41

Bash function to print black and white PNG (and JPEG, GIF, BMP) files to a networked Brother label printer (such as the QL-720NW)

	# Print a black and white PNG file on the first available Brother label printer
	# Requires https://github.com/pklaus/brother_ql
	# Source (.) this file to set bash completion and add the print function.
	function print-png-label() {
	if [ -f "$1" ]; then

	# Change these to match your printer:
	local LBLPMODEL="QL-720NW"
	local LBLPSIZE="62"

StefanHamminga / piplay

Last active November 18, 2020 06:17

piplay - Raspberry Pi Omxplayer wrapper script with support for wildcards, streaming (YouTube, etc) and skipping of played files.

	#!/bin/bash

	# piplay - Raspberry Pi Omxplayer wrapper script.

	# Required packages on Debian: omxplayer youtube-dl attr
	# TODO / future plans: Use the D-Bus interface to store media playback position and resume from there.

	REQUIREMENTS=(omxplayer youtube-dl find sort getfattr setfattr nice ionice)
	# Subtitle languages, in order of preferences. Format: movie.mkv & movie.en.srt => en
	SUBTITLELANGUAGES=( nl nld dut en eng )

StefanHamminga / rpi2-bootstrap.sh

Last active May 14, 2016 09:58

Pi2 to Pi2 Debian bootstrap notes / script

	#!/bin/bash -e

	echo "WARNING: Read and edit this before you run! Needs root privileges."
	exit 1

	apt install debootstrap hdparm sdparm

	SD=/dev/sdb
	BASEDIR="."
	TARGETDIR="rpi-img"

StefanHamminga / flat-object-to-key-value-string.js

Last active April 9, 2016 11:05

One liner flat object to key="value" conversion in ES6/ES2015 JavaScript

	// Any flat object with enumerable properties
	var properties = {
	id: "myid",
	value: "myvalue"
	};

	// This prepends a space to each key. If you only need separators between add them in the join.
	// ↓ ↓
	var string = Object.keys(properties).map(function(n){return ` ${n}="${properties[n]}"`;}).join("");
	// ' id="myid" value="myvalue"'

StefanHamminga / gist

Last active April 24, 2016 12:20

Wrapper script for GitHub Gist repositories. Allows keeping multiple Gist files in one directory and one command updates.

	#!/bin/bash -e

	# gist - GitHub Gist tool.
	# Created by Stefan Hamminga <[email protected]>. Use any of these licenses: MIT,
	# GPL v2.0 or higher, LGPL v2 or higher, or CC BY-4.0.
	# Repository: https://gist.github.com/44233d48eeff4c510829.git

	usage() {
	echo -e "
	\e[1mgist\e[0m - Wrapper script for GitHub Gist repositories. Allows keeping multiple

StefanHamminga / same_fs.sh

Last active January 26, 2016 21:52

Bash script to detect whether two paths/files are in the same file system

	#!/bin/bash

	MOUNTS=`cat /proc/mounts \| cut -d ' ' -f 2 \| sort \| uniq \| tr '/' '\\/'`
	IFS=$'\n'

	what_fs() {
	for MOUNT in ${MOUNTS}; do
	readlink -f $1 \| grep -o "^${MOUNT}"
	# echo -e "$1"
	# echo -e "${MOUNT}"

StefanHamminga / connectedTo

Last active January 26, 2016 21:46

Bash script to test if connected to a specific network and (optionally) if a given host is available on said network. Useful for cron / automated scripts.

	#!/bin/bash -e

	if [ $# -lt 1 ]; then
	echo -e "
	Connection and host availability test

	Usage:\n$0 'My network name' [ip_or_hostname] && command_to_run_when_available

	The network name needs to be quoted and as Network Manager reports it. Try
	'nmcli c show'.

StefanHamminga / rsync-skip-compress

Last active September 8, 2023 05:17

List of compressed file formats for use with Rsync --skip-compress=$RSYNC_SKIP_COMPRESS

export RSYNC_SKIP_COMPRESS=3g2/3gp/3gpp/3mf/7z/aac/ace/amr/apk/appx/appxbundle/arc/arj/asf/avi/br/bz2/cab/crypt5/crypt7/crypt8/deb/dmg/drc/ear/gz/flac/flv/gpg/h264/h265/heif/iso/jar/jp2/jpg/jpeg/lz/lz4/lzma/lzo/m4a/m4p/m4v/mkv/msi/mov/mp3/mp4/mpeg/mpg/mpv/oga/ogg/ogv/opus/pack/png/qt/rar/rpm/rzip/s7z/sfx/svgz/tbz/tgz/tlz/txz/vob/webm/webp/wim/wma/wmv/xz/z/zip/zst

Stefan Hamminga StefanHamminga