annesteenbeek

#!/usr/bin/env bash
# source: https://betterdev.blog/minimal-safe-bash-script-template/
set -Eeuo pipefail

cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1

trap cleanup SIGINT SIGTERM ERR EXIT

usage() {
  cat <<EOF

annesteenbeek

#!/bin/sh
### BEGIN INIT INFO
# Provides:          cloudprint
# Required-Start:    $local_fs $network $named $time $syslog
# Required-Stop:     $local_fs $network $named $time $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Description:       Manage cloudprint deamon.
### END INIT INFO

annesteenbeek

Ubuntu Demon Creator

An automated way of creating services/demons for ubuntu 16.04. source: https://github.com/x13machine/ubuntu-demon-creator

I made this script for other automated bash scripts and to fix some bugs in this https://gist.github.com/naholyr/4275302.

Example

curl https://gist.githubusercontent.com/annesteenbeek/757b67163baea35735094fe93da14017/raw/df7a3a84eef139d445a99bd2cf7382797dc739c8/create-deamon.sh | sudo name="web" username="web" command="/home/web/start.sh" bash

Logs

/var/log/.log

annesteenbeek

start_ros () {
    source /opt/ros/setup.sh

    roscore <>/dev/tty8 2>/dev/tty8 & disown
    until rostopic list ; do sleep 1; done
    roslaunch YOUR_PACKAGE YOUR_LAUNCH_FILE.launch <> /dev/tty9 2>/dev/tty9 & disown
}

stop_ros () {
    source /opt/ros/setup.sh

annesteenbeek

Latency Comparison Numbers
--------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

annesteenbeek

#!/usr/bin/env python

import rospy
import mavros
from geometry_msgs.msg import PoseStamped
from mavros.msg import State 
from mavros.srv import CommandBool, SetMode

# callback method for state sub
current_state = State() 

annesteenbeek

#!/bin/bash

while true
do
hasChristmasSpirit=false;
curSong=$(spotify-control getTitle)
declare -a whitelist=("christmas" "Lord" "Winter" "Xmas" "snow" "rudolph" "cold" "sleigh" "frosty");


## loop trough array of christmas spirit

annesteenbeek

\documentclass[10pt,a4paper,twoside]{article}
\usepackage[a4paper,top=1in, bottom=1in, right=1in, left=1in]{geometry}
\usepackage{listings}
\usepackage{textcomp}
\usepackage[usenames,dvipsnames]{color}  %% Allow color names
\definecolor{listinggray}{gray}{0.9}
\definecolor{lbcolor}{rgb}{0.95,0.95,0.95}
\definecolor{dkgreen}{rgb}{0,0.6,0}
\definecolor{dred}{rgb}{0.545,0,0}
\lstset{