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## Install trusty desktop on an NVMe device (with uefi)

sudo apt-get install ovmf zsync

qemu-img create nvme.img 10G

zsync http://cdimage.ubuntu.com/daily-live/current/trusty-desktop-amd64.iso.zsync

# copy OVMF.fd to use "-pflash" option and thus have persistent nvram storage 
cp /usr/share/ovmf/OVMF.fd .

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References:

• Ubuntu Community Wiki - PinningHowto
• Debian Wiki - AptPreferences

Overview

Priority values

From man page: man apt_preferences

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#!/usr/bin/env python3
"""
Watch the clipboard for URLs and open them in the browser (on Linux)
"""

import subprocess
import time

import pyperclip  # Requires xclip to be apt installed

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#!/usr/bin/env python3
"""Generate a presigned URL to download an S3 object

<cmd> bucket_name key_name [expiration_days]"""

import sys

import boto3
from botocore.client import Config

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From https://toms3d.org/2014/09/15/3d-printing-guides-setting-up-auto-bed-tramming-leveling-tilt-compensation/

1. send a G29 to run through the autotramming procedure
2. grab a piece of copy paper and slide that under the preheated hotend
3. send a G92 Z10, which tells the printer / to assume that the printhead is now actually 10mm above the bed’s surface
4. move the Z axis down in increments of 0.1mm until the tip of the hotend just touches the surface of the paper
5. send M114 to see how much length of the 10mm on Z you have used up to # get down this far
6. enter that into the z probe offset from extruder as a negative value since the trigger point of the probe is actually # closer to the bed’s surface than the tip of your hotend

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#!/bin/bash -e
# Measure the bytes read by a command
# count_command_io <cmd> <args>*
# Credit to shodanex from https://stackoverflow.com/a/8853287

if [ -z $@ ] ; then
        echo "Usage: $0 <cmd> <args>*"
        exit 1
fi

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import inspect

def print_args():
    '''Print the callers function name along with argument values'''
    
    # TODO: print * and ** args
    frame, _, _, name, _, _ = inspect.getouterframes(inspect.currentframe())[1]
    args, _, _, values = inspect.getargvalues(frame)
    print("%s: %s)" % (name, ["%s=%s" % (i, values[i]) for i in args]))

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"""
Play with AWS EC2 describe_instance_types
"""

from boto3.session import Session

sess = Session()
ec2c = sess.client('ec2')

resp = ec2c.describe_instance_types()

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#!/bin/bash -eu
set -o pipefail

# Run a command and report status to https://healthchecks.io
usage() {
	echo "Usage: $0 <healthchecks.io UUID> <command>"
	exit 1
}
trap usage EXIT

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name: hello
services:
- name: hello
  http_port: 80
  image:
    registry_type: DOCKER_HUB
    registry: nginxdemos
    repository: hello
    tag: latest