Categories cheatsheet Ubuntu Services sudoers ssh sqlite3 Reverse SSH rails new Rails Model, View, Controller, Router architecture Notes on RADIUS package.json Versions, Decoded NGINX make and makefiles LDAP HTML Boilerplate Hostname Git Git Flow Summary find DNS Record Types Create tar file of a folder ruby Rack::Cascade and Modular Sinatra Applications Generate Secret Keys Middleware Testing with RSpec Fun with Rack Keep track of your instances cli View a CSV on the Command Line cURL and Wget Files bash set -x View Running Services Finding Devices on Your Local Network Making cURL requests to a host with a Self-Signed Certificate Identify a Linux Distribution Notes on the rename Command Android Commands Text-based Audio Player Fun with ffmpeg Using the OSX Command Line macOS Toggle WiFi with Hotkeys in OSX raspberry-pi Identify RaspberryPi Hardware Revision from the Command Line RetroPie on the Zero