William Kim azamara

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

-E: will describe the underlaying queries of the \ commands (cool for learning!)
-l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

:q        close
:w        write/saves
:wa[!]    write/save all windows [force]
:wq       write/save and close

start new:

tmux

start new with session name:

tmux new -s myname

Go to the egghead website, i.e. Building a React.js App

run

var result = '';
$.each($('.relative .items-center > a'), function(index, video){
  result += video.href + '\n';

	# Module: docker
	# Docs: https://www.elastic.co/guide/en/beats/metricbeat/6.5/metricbeat-module-docker.html

	- module: docker
	#metricsets:
	# - container
	# - cpu
	# - diskio
	# - healthcheck
	# - info

	---
	- name: Install NFS Client
	hosts: nfs-client
	gather_facts: no
	become: yes

	tasks:
	- name: Install
	shell: \|
	yum install -y nfs-utils \|\| (apt-get -y update && apt-get install -y nfs-common)

	<!doctype html>
	<html lang="en">
	<head>
	<meta charset="utf-8">
	<title>GistRun</title>
	<link rel="stylesheet" href="styles.css">
	</head>
	<body>
	<div id="app"></div>
	<script>

	version: '2'
	services:
	memcached:
	image: memcached:alpine
	stdin_open: true
	tty: true
	labels:
	io.rancher.container.pull_image: always
	awx-web:
	image: ansible/awx_web:latest