henrik

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

sedm0784

g_LastCtrlKeyDownTime := 0
g_AbortSendEsc := false
g_ControlRepeatDetected := false

*CapsLock::
    if (g_ControlRepeatDetected)
    {
        return
    }

hubgit

Anonymising PDFs

PDF metadata

Metadata in PDF files can be stored in at least two places:

• the Info Dictionary, a limited set of key/value pairs
• XMP packets, which contain RDF statements expressed as XML

PDF files

bbotelho3

# The first approach that I found was to convert using a virtual device using Ghostscript.
# The virtual device, pdfwrite, supports parameters to convert the original PDF file to another PDF file in grayscale.
# In my case, I wanted only black and white, so this was not enough.

#!/bin/bash

gs \
 -sOutputFile=output.pdf \
 -sDEVICE=pdfwrite \
 -sColorConversionStrategy=Gray \

dpapathanasiou

SchemaSpy is a neat tool to produce visual diagrams for most relational databases.

Here's how to use it to generate schema relationship diagrams for PostgreSQL databases:

1. Download the jar file from here (the current version is v6.1.0)

2. Get the PostgreSQL JDBC driver (unless your installed version of java is really old, use the latest JDBC4 jar file)

3. Run the command against an existing database. For most databases, the schema (-s option) we are interested in is the public one:

ryanseddon

mocha --compilers js:babel/register,js:./test/css-modules-compiler.js --recursive -w

glenjamin

/* @flow */

import * as I from "immutable";

/**
 * Define an immutable record intended for holding reducer state
 * @param  spec - the keys and their default values
 * @return a state record factory function
 */
export function defineRecord<T: Object>(

louisremi

import React from 'react';

import Places from './places.components.jsx';

export default class Example extends React.Component {
	constructor(props) {
		super(props);

		this.state = {address: {}};
		this.handleChange = this.handleChange.bind(this);

jarretmoses

RN < 0.50 - watchman watch-del-all && rm -rf $TMPDIR/react-* && rm -rf node_modules/ && npm cache clean && npm install && npm start -- --reset-cache
RN >= 0.50 -  watchman watch-del-all && rm -rf $TMPDIR/react-native-packager-cache-* && rm -rf $TMPDIR/metro-bundler-cache-* && rm -rf node_modules/ && npm cache clean && npm install && npm start -- --reset-cache
RN >= 0.63 - watchman watch-del-all && rm -rf node_modules && npm install && rm -rf /tmp/metro-* && npm run start --reset-cache

npm >= 5 - watchman watch-del-all && rm -rf $TMPDIR/react-* && rm -rf node_modules/ && npm cache verify && npm install && npm start -- --reset-cache

Windows - del %appdata%\Temp\react-native-* & cd android & gradlew clean & cd .. & del node_modules/ & npm cache clean --force & npm install & npm start -- --reset-cache

anhldbk

1. Overview

This is an example of using module tls in NodeJS to create a client securely connecting to a TLS server.

It is a modified version from documentation about TLS, in which:

• The server is a simple echo one. Clients connect to it, get the same thing back if they send anything to the server.
• The server is a TLS-based server.
• Clients somehow get the server's public key and use it to work securely with the server

2. Preparation