Matúš Honěk kenoh

THIS GIST WAS MOVED TO TERMSTANDARD/COLORS REPOSITORY.

PLEASE ASK YOUR QUESTIONS OR ADD ANY SUGGESTIONS AS A REPOSITORY ISSUES OR PULL REQUESTS INSTEAD!

NOTE: a more up-to-date version of this can be found on my blog

nix-shell and Shebang Lines

A few days ago, version 1.9 of the Nix package manager was released. From the release notes:

nix-shell can now be used as a #!-interpreter. This allows you to write scripts that dynamically fetch their own dependencies.

Category theory jargon cheat sheet

A primer/refresher on the category theory concepts that most commonly crop up in conversations about Scala or FP. (Because it's embarassing when I forget this stuff!)

I'll be assuming Scalaz imports in code samples, and some of the code may be pseudo-Scala.

Functor

A functor is something that supports map.

Build docker image

$ cd /path/to/Dockerfile
$ sudo docker build .

View running processes

README

The example below creates a TCP server listening on a stream (i.e. SOCK_STREAM) socket. A similar approach can be followed to create a UDP server on a datagram (i.e. SOCK_DGRAM) socket. See man systemd.socket for details.

An example server

Create an simple echo server at ~/tmp/foo/serve.py.

I hope the tutorial has been useful to you. If it was kindly leave a like and a comment, and consider subscribing and turning on subscription notifications. I intend to make more videos like this on the topics mentioned before as well as on other spacemacs topic like magit (git plugin), large scale refactoring, and a number of other things. Thank you so much for watching.

Org tutorial

Note: a great reference can be had here http://spacemacs.org/layers/+emacs/org/README.html

Outlines/headers

Show that each outline has it’s associated “text” under it

	#!/usr/bin/env python
	# Adapted from Mark Mandel's implementation
	# https://github.com/ansible/ansible/blob/devel/plugins/inventory/vagrant.py
	import argparse
	import json
	import paramiko
	import subprocess
	import sys

	# Posted at http://dl.dropbox.com/u/18371907/asoundrc
	# Info: http://www.sabi.co.uk/Notes/linuxSoundALSA.html
	# Soundcard roundup: http://forums.gentoo.org/viewtopic-p-4192284.html#4192284

	# Show programs currently opening ALSA:
	# fuser -fv /dev/snd/* /dev/dsp*

	# Show opened settings:
	# cat /proc/asound/card0/pcm0p/sub0/hw_params