wware

I need a reminder about how to set up a service in Linux that will run a script at boot time. Put this LSB init script in your /etc/init.d directory and then type

sudo update-rc.d linux_service.sh defaults

to set up the service. This is a wrapper for the script you actually want to run. The "Required-Start" section allows you to choose what Linux services need to be running before your own service is started. (I think my Fluidsynth script probably wants "alsasound".)

Some relevant links about this stuff:

wware

#!/usr/bin/env python

import os
import re
import time
import subprocess

os.system("ps ax | grep fluidsynth | cut -c -6 | xargs kill -9")

devnull = os.open('/dev/null', os.O_WRONLY)

wware

========== Converting a VirtualBox VDI image to a bootable USB stick to run on the Intel NUC

http://askubuntu.com/questions/556911/how-to-create-an-iso-image-from-vdi-file/#answer-816885

TEST THIS STUFF AND UPDATE THE ASKUBUNTU ANSWER IF NECESSARY. If the USB stick can be used with a second VM, add that to the answer.

Test this procedure using Damn Small Linux and make sure it works as expected. More thoughts about DSL on USB stick here.

wware

int count = 0;
void setup() { }
void loop() {
    int i;
    Keyboard.print("Hello World ");
    Keyboard.print(count);
    count = count + 1;
    delay(2000);
    for (i = 0; i < 20; i++) {
        Keyboard.print("\177");

wware

Python packaging info

I need to start educating myself about how Python packages work.

• http://www.ianbicking.org/docs/setuptools-presentation/ - slideshow about how to put together a package

Official docs:

• http://setuptools.readthedocs.io/en/latest/setuptools.html

wware

import types
import inspect
import pprint
from collections import defaultdict


def get_stack(offset=0):
    def frame2tuple(frame):
        info = inspect.getframeinfo(frame[0])
        return (info.filename, info.lineno)

wware

A curated list of AWS resources to prepare for the AWS Certifications

A curated list of awesome AWS resources you need to prepare for the all 5 AWS Certifications. This gist will include: open source repos, blogs & blogposts, ebooks, PDF, whitepapers, video courses, free lecture, slides, sample test and many other resources.

---

Index:

wware

const int channel = 1;
const int led = 13;

void setup() {
  pinMode(led, OUTPUT);
}

int programs[] = {
  1,   // acoustic grand piano
  9,   // celesta

wware

(define (factorial n)
  ;; tail recursion is fast, and often requires a helper function
  (define (helper n product)
    (if (< n 2)
      product
      (helper (- n 1) (* n product))))
  (helper n 1))

;; Scheme looping structure
(do

wware

"""
Provide access to a Bash shell on the remote machine during a RemotePdb session.
"""
import os
import remote_pdb

def rpdb(port=4444):
    class RemotePdb(remote_pdb.RemotePdb):

        def do_shell(self, arg):