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@graceavery
graceavery / harryPotterAliases
Last active February 6, 2026 23:09
bash aliases for Harry Potter enthusiasts
alias accio=wget
alias avadaKedavra='rm -f'
alias imperio=sudo
alias priorIncantato='echo `history |tail -n2 |head -n1` | sed "s/[0-9]* //"'
alias stupefy='sleep 5'
alias wingardiumLeviosa=mv
alias sonorus='set -v'
alias quietus='set +v'

Creating a redis Module in 15 lines of code!

A quick guide to write a very very simple "ECHO" style module to redis and load it. It's not really useful of course, but the idea is to illustrate how little boilerplate it takes.

Step 1: open your favorite editor and write/paste the following code in a file called module.c

#include "redismodule.h"
/* ECHO <string> - Echo back a string sent from the client */
int EchoCommand(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) {
@dannguyen
dannguyen / README.md
Last active March 25, 2026 02:26
Using Python 3.x and Google Cloud Vision API to OCR scanned documents to extract structured data

Using Python 3 + Google Cloud Vision API's OCR to extract text from photos and scanned documents

Just a quickie test in Python 3 (using Requests) to see if Google Cloud Vision can be used to effectively OCR a scanned data table and preserve its structure, in the way that products such as ABBYY FineReader can OCR an image and provide Excel-ready output.

The short answer: No. While Cloud Vision provides bounding polygon coordinates in its output, it doesn't provide it at the word or region level, which would be needed to then calculate the data delimiters.

On the other hand, the OCR quality is pretty good, if you just need to identify text anywhere in an image, without regards to its physical coordinates. I've included two examples:

####### 1. A low-resolution photo of road signs

@hrbrmstr
hrbrmstr / badmail.Rmd
Last active December 1, 2016 07:59
Code for this post:
---
title: "Visualizing the Clinton Email Network in R"
author: "hrbrmstr"
date: "`r Sys.Date()`"
output: html_document
---
```{r include=FALSE}
knitr::opts_chunk$set(
collapse=TRUE,
comment="#>",
@m-ou-se
m-ou-se / replace-debian-with-arch.txt
Last active December 15, 2025 14:20
Instructions to replace a live Debian installation with Arch
# Download latest archlinux bootstrap package, see https://www.archlinux.org/download/
wget 'ftp://ftp.nluug.nl/pub/os/Linux/distr/archlinux/iso/latest/archlinux-bootstrap-*-x86_64.tar.gz'
# Make sure you'll have enough entropy for pacman-key later.
apt-get install haveged
# Install the arch bootstrap image in a tmpfs.
mount -t tmpfs none /mnt
cd /mnt
tar xvf ~/archlinux-bootstrap-*-x86_64.tar.gz --strip-components=1
@dannguyen
dannguyen / faa-333-pdf-gathering.md
Last active June 19, 2021 13:18
Using wget + grep to explore inconveniently organized federal data (FAA Section 333 Exemptions)

if !database: wget + grep

The Federal Aviation Administration is posting PDFs of the Section 333 exemptions that it grants, i.e. the exemptions for operators who want to fly drones commercially before the FAA finishes its rulemaking. A journalist wanted to look for exemptions granted to operators in a given U.S. state. But the FAA doesn't appear to have an easy-to-read data file to use and doesn't otherwise list exemptions by location of operator.

However, since their exemptions page is just one giant HTML table for listing the PDFs, we can just use wget to fetch all the PDFs, run pdftotext on each file, and then [grep](https://medium.com/@rualthanzauva/grep-was-a-private-command-of-m

@chrismdp
chrismdp / s3.sh
Last active May 5, 2026 04:47
Uploading to S3 in 18 lines of Shell (used to upload builds for http://soltrader.net)
# You don't need Fog in Ruby or some other library to upload to S3 -- shell works perfectly fine
# This is how I upload my new Sol Trader builds (http://soltrader.net)
# Based on a modified script from here: http://tmont.com/blargh/2014/1/uploading-to-s3-in-bash
S3KEY="my aws key"
S3SECRET="my aws secret" # pass these in
function putS3
{
path=$1

2015-01-29 Unofficial Relay FAQ

Compilation of questions and answers about Relay from React.js Conf.

Disclaimer: I work on Relay at Facebook. Relay is a complex system on which we're iterating aggressively. I'll do my best here to provide accurate, useful answers, but the details are subject to change. I may also be wrong. Feedback and additional questions are welcome.

What is Relay?

Relay is a new framework from Facebook that provides data-fetching functionality for React applications. It was announced at React.js Conf (January 2015).

@dequis
dequis / patch.py
Last active December 19, 2017 19:01
MSN ApplicationId binary patcher for pidgin/bitlbee/etc - OBSOLETE now that pidgin/bitlbee have the correct fix - READ THE COMMENTS!
#!/usr/bin/env python
"""
MSN ApplicationId patcher for pidgin/bitlbee/whatever
(because you're too lazy to rebuild the whole thing.)
Usage examples:
python patch.py /usr/sbin/bitlbee
python patch.py /usr/lib/purple-2/libmsn.so
@ndarville
ndarville / business-models.md
Last active April 8, 2026 23:11
Business models based on the compiled list at http://news.ycombinator.com/item?id=4924647. I find the link very hard to browse, so I made a simple version in Markdown instead.

Business Models

Advertising

Models Examples
Display ads Yahoo!
Search ads Google