Pierre Louchet Hellfar

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

Using Apple’s Aerial Screensavers on Ubuntu After coming across the [Aerial] (https://github.com/JohnCoates/Aerial) screensavers for Mac, and installing them, I decided that I had had enough of the graphics-demos of my Ubuntu Precise system. I hope to provide a simple guide on how to add them to your setup as well.

First, you need to install xscreensaver (for example with aptitude, but your distro should have it):

sudo aptitude install xscreensaver

Exposing a directory on the host machine to an LXC container

Log into the container and create an empty directory, this will be the mount point
Log out and stop the container.
Open to your container's config file
- For regular LXC containers: /var/lib/lxc/mycontainer/config
- For unprivileged LXC containers: $HOME/.local/share/lxc/mycontainer/config
Add a new line above the lxc.mount directive, that follows the format below. Substitute proper paths as necessary:
- lxc.mount.entry = /path/to/folder/on/host /path/to/mount/point none bind 0 0

Both of these paths are relative to the host machine.

Better local require() paths for Node.js

Problem

When the directory structure of your Node.js application (not library!) has some depth, you end up with a lot of annoying relative paths in your require calls like:

const Article = require('../../../../app/models/article');

Those suck for maintenance and they're ugly.

	#!/bin/bash
	#
	# waitForX [<cmd> [<arg> ...]]
	#
	# Wait for X Server to be ready, then run the given command once X server
	# is ready. (Or simply return if no command is provided.)
	#

	function LOG {
	echo $(date -R): $0: $*

	def prod(x):
	r = 1
	for i in "%d" % x:
	r*=int(i)
	return r

	def recprod(x, it):
	if x <= 9:
	return it
	else:

	.highlight { background: #ffffff; }
	.highlight .c { color: #999988; font-style: italic } /* Comment */
	.highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */
	.highlight .k { font-weight: bold } /* Keyword */
	.highlight .o { font-weight: bold } /* Operator */
	.highlight .cm { color: #999988; font-style: italic } /* Comment.Multiline */
	.highlight .cp { color: #999999; font-weight: bold } /* Comment.Preproc */
	.highlight .c1 { color: #999988; font-style: italic } /* Comment.Single */
	.highlight .cs { color: #999999; font-weight: bold; font-style: italic } /* Comment.Special */
	.highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */

	app.filter('capitalize', function() {
	return function(input, scope) {
	if (input!=null)
	input = input.toLowerCase();
	return input.substring(0,1).toUpperCase()+input.substring(1);
	}
	});

	require "active_record"

	namespace :db do

	db_config = YAML::load(File.open('config/database.yml'))
	db_config_admin = db_config.merge({'database' => 'postgres', 'schema_search_path' => 'public'})

	desc "Create the database"
	task :create do
	ActiveRecord::Base.establish_connection(db_config_admin)

	require 'io/console'

	# Reads keypresses from the user including 2 and 3 escape character sequences.
	def read_char
	STDIN.echo = false
	STDIN.raw!

	input = STDIN.getc.chr
	if input == "\e" then
	input << STDIN.read_nonblock(3) rescue nil

Pierre Louchet Hellfar

Common Options

Exposing a directory on the host machine to an LXC container

Better local require() paths for Node.js

Problem

Possible solutions