Anjesh anjesh

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

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)

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

Clarify and agree on the scope of the system

User cases (description of sequences of events that, taken together, lead to a system doing something useful)
- Who is going to use it?
- How are they going to use it?

Comprehensions in Python the Jedi way

by Bjørn Friese

Beautiful is better than ugly. Explicit is better than implicit.

-- The Zen of Python

I frequently deal with collections of things in the programs I write. Collections of droids, jedis, planets, lightsabers, starfighters, etc. When programming in Python, these collections of things are usually represented as lists, sets and dictionaries. Oftentimes, what I want to do with collections is to transform them in various ways. Comprehensions is a powerful syntax for doing just that. I use them extensively, and it's one of the things that keep me coming back to Python. Let me show you a few examples of the incredible usefulness of comprehensions.

My Elasticsearch cheatsheet with example usage via rest api (still a work-in-progress)

Shortlinks:

Cluster Health
- Index Level
- Shard Level
Nodes Overview
Indices Overview
Cluster Maintenance

Building pgModeler in MacOS with Homebrew

The official installation instructions for pgModeler recommends installing Xcode and the Enterprise DB distribution of Postgres to fulfill its build requirements. Luckily, Homebrew's got us covered!

Checkout the source

git clone https://github.com/pgmodeler/pgmodeler.git

	#!/bin/sh
	#
	# Setup a work space called `work` with two windows
	# first window has 3 panes.
	# The first pane set at 65%, split horizontally, set to api root and running vim
	# pane 2 is split at 25% and running redis-server
	# pane 3 is set to api root and bash prompt.
	# note: `api` aliased to `cd ~/path/to/work`
	#
	session="work"

	# Letter to a Young Haskell Enthusiast, by Gershom Bazerman.
	Condensed from: http://comonad.com/reader/2014/letter-to-a-young-haskell-enthusiast/

	The following letter is about tendencies that come with the flush of excitement of learning any new thing.
	It is written specifically, because if we don't talk specifics, the generalities make no sense.
	It is a letter full of things I want to remember.

	You’ve entered the world of strongly typed functional programming, and it is great.
	You want to share the great things you’ve learned, and you want to slay all the false statements in the world.

	# Elasticsearch Cheatsheet - an overview of commonly used Elasticsearch API commands

	# cat paths
	/_cat/allocation
	/_cat/shards
	/_cat/shards/{index}
	/_cat/master
	/_cat/nodes
	/_cat/indices
	/_cat/indices/{index}