roostercrab

Docker Commands, Help & Tips

Show commands & management commands

$ docker

Docker version info

Community

Elixir Slack Group

Cheatsheets

GenServer Cheatsheet by Benjamin Tan Wei Hao

Books

Don't use VPN services.

No, seriously, don't. You're probably reading this because you've asked what VPN service to use, and this is the answer.

Note: The content in this post does not apply to using VPN for their intended purpose; that is, as a virtual private (internal) network. It only applies to using it as a glorified proxy, which is what every third-party "VPN provider" does.

A Russian translation of this article can be found here, contributed by Timur Demin.
A Turkish translation can be found here, contributed by agyild.
There's also this article about VPN services, which is honestly better written (and has more cat pictures!) than my article.

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)

	# boolean values, use if
	if expression, do: this(), else: that()

	# non-boolean multi-value single expressions, use case
	case expression do
	value1 -> one()
	value2 -> two()
	value3 -> three()
	_ -> anything_else()
	end

	# project-repo/app/settings/.env-example
	#
	# DJANGO
	#
	SITE_HOST=localhost:8000
	USE_SSL=False
	ALLOWED_HOSTS=localhost,127.0.0.1
	SECRET_KEY=asdasd
	DEBUG=true # never on production, will cause settings including api keys to leak
	DJANGO_LOG_LEVEL=DEBUG

	- Open Automator
	- File -> New -> Service
	- Change "Service Receives" to "files or folders" in "Finder"
	- Add a "Run Shell Script" action
	- Change "Pass input" to "as arguments"
	- Paste the following in the shell script box: open -n -b "com.microsoft.VSCode" --args "$*"
	- Save it as something like "Open in Visual Studio Code"

	import Graphics.Collage exposing (..)
	import Graphics.Element exposing (..)
	import Color exposing (..)
	import Keyboard
	import Time
	import Debug

	-- Model
	type alias Model = { x : Float, y : Float, radius: Float }

	[MASTER]

	# Specify a configuration file.
	#rcfile=

	# Python code to execute, usually for sys.path manipulation such as
	# pygtk.require().
	#init-hook=

	# Profiled execution.