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View quick_reboot.sh
echo 1 > /proc/sys/kernel/sysrq
echo s > /proc/sysrq-trigger #sync
echo u > /proc/sysrq-trigger #unmount + mount readonly
echo b > /proc/sysrq-trigger #reboot
@0xd61
0xd61 / udev-commands.md
Last active December 12, 2022 18:28
Useful udev Commands
View udev-commands.md

Test systemd-networkd link settings

udevadm -d test-builtin net_setup_link /sys/class/net/eth0

Testing udev rules

udevadm test /sys/class/net/eth0

Get info of network device

@0xd61
0xd61 / build.sh
Last active October 2, 2021 23:34
Linux C++ default buildfile
View build.sh
#!/usr/bin/env sh
set -e
APP_NAME="myapp"
DEFINE_PREFIX="MYAPP"
BINARY="${APP_NAME}_linux_x86_64"
BASE_DIR="$PWD"
PLATFORM_DIR="$(dirname "$0")"
PLATFORM_NAME="$(basename "${PLATFORM_DIR}")"
@0xd61
0xd61 / kvm.nix
Created July 24, 2021 00:32 — forked from Nekroze/kvm.nix
NixOS Declarative KVM Guests
View kvm.nix
## Builder for NixOS configurations defined at the end of the file to be built into KVM VM's
{ system ? builtins.currentSystem }:
let
loadcfg = cfgfile: { config, pkgs, ...}: {
imports = [ <nixos/modules/virtualisation/qemu-vm.nix> cfgfile ];
config = {
networking.extraHosts = ''
176.32.0.254 template
'';
View duckduckgo_image_url_grabber.js
// grab the URLs
var urls = $('.tile--img__img').map(function(idx, el) { return el.src});
// write the URls to file (one per line)
var textToSave = urls.toArray().join('\n');
var hiddenElement = document.createElement('a');
hiddenElement.href = 'data:attachment/text,' + encodeURI(textToSave);
hiddenElement.target = '_blank';
hiddenElement.download = 'urls.txt';
hiddenElement.click();
@0xd61
0xd61 / shell.nix
Last active September 19, 2021 20:45
Nix shell env template
View shell.nix
# This shell defines a development environment for a c project.
{
pkgs ? import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/39e6bf76474ce742eb027a88c4da6331f0a1526f.tar.gz") {}
}:
# Override packages if necessary
#let
# newExample = pkgs.example.override {
# option = example
# };
@0xd61
0xd61 / qemu_rpi.sh
Created October 7, 2020 19:59
Script to run an rpi image on QEMU
View qemu_rpi.sh
#!/bin/sh
# This script follows the instructions found in https://github.com/dhruvvyas90/qemu-rpi-kernel
QEMU=`which qemu-system-arm`
BASE_DIR=.
RPI_KERNEL=${BASE_DIR}/kernel-qemu-5.4.51-buster
RPI_DTB=${BASE_DIR}/versatile-pb-buster.dtb
IMAGE_BASE=2020-08-20-raspios-buster-armhf-lite
IMAGE=${IMAGE_BASE}.img
@0xd61
0xd61 / gibbon_markbook_query.sql
Last active September 18, 2020 15:07
MySQL queries and procedures for gibbon
View gibbon_markbook_query.sql
-- Procedure to export grades for a year and class from the markbook
DROP PROCEDURE IF EXISTS customMarkbookGrades;
DELIMITER $$
CREATE PROCEDURE customMarkbookGrades (
IN school_year_id int(3),
IN year_group VARCHAR(256),
IN class_name VARCHAR(256),
IN grade_type VARCHAR(256)
@0xd61
0xd61 / kvm-manager-wifi.sh
Last active September 10, 2020 19:18
kvm/qemu helper script
View kvm-manager-wifi.sh
#!/bin/bash
# script from http://www.linux-kvm.org/page/Simple_shell_script_to_manage_your_virtual_machine_with_bridged_networking
######################
## Default settings ##
######################
## Directory and files
if ! [ -d $2 ]
@0xd61
0xd61 / xcb_fullscreen_toggle.cpp
Last active October 31, 2022 22:44
Linux XCB Fullscreen Toggle Snippet
View xcb_fullscreen_toggle.cpp
//
// This section is just for context
//
#include <xcb/xcb.h>
#include <stdlib.h>
#include <stdint.h>
#include <stddef.h>
typedef int8_t int8;