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RichardBronosky / README.md
Last active Dec 5, 2019
Using cloud-init for cloudless provisioning of Raspberry Pi
View README.md

Installing cloud-init on a fresh Raspbian Lite image

This is a work in Progress!

Purpose

This mainly demonstrates my goal of preparing a Raspberry Pi to be provisioned prior to its first boot. To do this I have chosen to use the same cloud-init that is the standard for provisioning servers at Amazon EC2, Microsoft Azure, OpenStack, etc.

I found this to be quite challenging because there is little information available for using cloud-init without a cloud. So, this project also servers as a demonstration for anyone on any version of Linux who may want to install from source, and/or use without a cloud. If you fall into that later group, you probably just want to read the code. It's bash so everything I do, you could also do at the command line. (Even the for loop.)

View shell_script_design_goals.md

Shell Script Design Goals

  • Don't avoid bashisms unless you know bash will be unavailable
    • Use #!/bin/bash rather than #!/bin/sh
    • If you are going to try to avoid bash, you must test on a system that does not have bash
  • Always include a shebang #!
  • Handle errors
    • Use set -eu (errexit & nounset)
  • Sould be idemponent if read via source
    • Use subshells to avoid leaking unintended variables into the parent scope
View pep8_cheatsheet.py
#! /usr/bin/env python
# -*- coding: utf-8 -*-
"""This module's docstring summary line.
This is a multi-line docstring. Paragraphs are separated with blank lines.
Lines conform to 79-column limit.
Module and packages names should be short, lower_case_with_underscores.
Notice that this in not PEP8-cheatsheet.py
@RichardBronosky
RichardBronosky / README.MD
Last active Nov 26, 2019
cb - A leak-proof tee to the clipboard - Unify the copy and paste commands into one intelligent chainable command.
View README.MD

cb

A leak-proof tee to the clipboard

This script is modeled after tee (see [man tee][2]).

It's like your normal copy and paste commands, but unified and able to sense when you want it to be chainable

Examples

View pid_lineage.sh
#!/bin/bash -eu
pid_lineage(){
ps -p ${1:-$$} -o pid,ppid,args | tail -n1 | \
(
read pid ppid args
echo -e "$pid\t$args"
[[ $pid -gt 1 ]] && pid_lineage $ppid -
) | (
[[ ${2:-} != '-' ]] && \
View Start-ScreenSaver.ps1
# Start-ScreenSaver
# Version: 1.1
# From: https://lunaticexperiments.wordpress.com/2006/12/07/powershell-script-to-start-a-random-screen-saver/
param ([String]$Include, [String]$Exclude)
#Avoid execution if a screen saver is already running
if (get-Process *.scr) {
return
}
View local-bin
#!/bin/bash -eu
[[ -z ${1:-} ]] && \
echo -e "\n""Usage: $0 executable_path [destination_path] ""\n" || \
executable_path="${1:-}"
: $executable_path
destination_path="${2:-/usr/local/bin}"
exec="$( basename $executable_path )"
dir="$( dirname $executable_path )"
@RichardBronosky
RichardBronosky / Fork your own Gist.md
Last active Nov 14, 2019 — forked from antichris/about.md
Fork your own Gist
View Fork your own Gist.md

Fork your own Gist

It used to be possible to fork your own gists via the browser using a little JS magic. This is no longer the case. As an alternative, you can use Chris Wanstrath's https://github.com/defunkt/gist cli tool to do the next best thing.

Usage

gist-fork git@gist.github.com:fcc543f7f1cfba404caf5ce276cc0951.git
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Thu Nov 14 12:11:48 EST 2019
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Thu Nov 14 12:10:38 EST 2019
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