x0nu11byt3

ELF Format Cheatsheet

Introduction

Executable and Linkable Format (ELF), is the default binary format on Linux-based systems.

Compilation

katef

/*
 * John Conway's Game of Life.
 *
 * This is written for POSIX, using Curses. Resizing of the terminal is not
 * supported.
 *
 * By convention in this program, x is the horizontal coordinate and y is
 * vertical. There correspond to the width and height respectively.
 * The current generation number is illustrated when show_generation is set.
 *

plembo

Emulating a Raspberry Pi with QEMU

Goal: Emulate a Raspberry Pi with QEMU in order to run the Raspbian O/S (based on Debian Linux).

The current setup is not ideal. For one thing, the maximum RAM allowed using the "versatile-pb" firmware is 256 Mb. In addition, only the most basic peripherals, a keyboard and mouse, are supported.

A number of articles have been written on this topic. Most are outdated, and the few recent ones are missing key information.

davidfowl

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;

namespace SimpleWebSockets
{
    public class Program
    {
        public static void Main(string[] args)
        {
            var host = new WebHostBuilder()

ipbastola

JQ to filter JSON by value

Syntax: cat <filename> | jq -c '.[] | select( .<key> | contains("<value>"))'

Example: To get json record having _id equal 611

cat my.json | jq -c '.[] | select( ._id | contains(611))'

Remember: if JSON value has no double quotes (eg. for numeric) to do not supply in filter i.e. in contains(611)

bastman

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

t686

Small guide on how to manage your Handlebars.js templates.

Be sure you are familiar with {{mustache}} templating techniques.

#Installation Install Handlebars npm package running this command:

npm install -g handlebars (installed node and npm required)

adambray

Delivery Tips:

• Think about how long you're talking
• Move quicker sooner, slower later
• Cold Call more often
• Revisit LOs
• Defer questions when appropriate

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