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# Install arch linux in an encrypted btrfs partition with GPT and UEFI support, gummiboot and hibernate/resume support
# sources:
# http://hole.tuziwo.info/install-arch-linux-on-uefi-gpt-computer-with-btrfs-support.html 
# http://www.brunoparmentier.be/blog/how-to-install-arch-linux-on-an-encrypted-btrfs-partition.html
# https://wiki.archlinux.org/index.php/Dm-crypt/Swap_encryption

# Take note of this:
# - The first thing you need is to identify which disk you're going to use. For the purpose of this guide, it will be /dev/sda
#   Be VERY CAREFUL if you have more than one disk on your computer, and DOUBLE CAREFUL if one of them is the one with your backups
# - Since btrfs does not support swapfiles (yet), we'll create a swap partition. In this guide, it will NOT be encrypted

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Contents

• Why care about Rust?
• The Toolchain
• Creating a New Project
• Modules
• Crates
• Types
• References
• Mutability

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JavaScript to Rust Cheat Sheet

The goal of this is to have an easily-scannable reference for the most common syntax idioms in JavaScript and Rust so that programmers most comfortable with JavaScript can quickly get through the syntax differences and feel like they could read and write basic Rust programs.

What do you think? Does this meet its goal? If not, why not?

Variables

JavaScript:

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Brother DCP-L2540DW on Arch Linux

Printer

The printer driver can be installed with the brother-brgenml1 AUR package.

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#!/bin/sh
##
## netscreen/jnpr ssl vpn connection magic
## [email protected] / @oogali
##
## i wrote this about a year ago (2009), when i had continuous access
## to a jnpr ssl vpn box and had to connect via it.
##
## if bits of this script are broken, i'll be glad to fix if someone
## gives me client access to a ssl vpn box to test against.

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# Heavily depends on:
# libqrencode (fukuchi.org/works/qrencode/)
# paperkey (jabberwocky.com/software/paperkey/)
# zbar (zbar.sourceforge.net)

# Producing the QR codes:
# Split over 4 codes to ensure the data per image is not too large.
gpg --export-secret-key KEYIDGOESHERE | paperkey --output-type raw | base64 > temp
split temp -n 4 IMG
for f in IMG*; do cat $f | qrencode -o $f.png; done

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Transducers and Reducers

Notes and examples of Transducers and Reducers

Reducers

• Used on collections

• Eager evaluation only. (not lazy)

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# In order for gpg to find gpg-agent, gpg-agent must be running, and there must be an env
# variable pointing GPG to the gpg-agent socket. This little script, which must be sourced
# in your shell's init script (ie, .bash_profile, .zshrc, whatever), will either start
# gpg-agent or set up the GPG_AGENT_INFO variable if it's already running.

# Add the following to your shell init to set up gpg-agent automatically for every shell
if [ -f ~/.gnupg/.gpg-agent-info ] && [ -n "$(pgrep gpg-agent)" ]; then
    source ~/.gnupg/.gpg-agent-info
    export GPG_AGENT_INFO
else

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# In order for gpg to find gpg-agent, gpg-agent must be running, and there must be an env
# variable pointing GPG to the gpg-agent socket. This little script, which must be sourced
# in your shell's init script (ie, .bash_profile, .zshrc, whatever), will either start
# gpg-agent or set up the GPG_AGENT_INFO variable if it's already running.

# Add the following to your shell init to set up gpg-agent automatically for every shell
if [ -f ~/.gnupg/.gpg-agent-info ] && [ -n "$(pgrep gpg-agent)" ]; then
    source ~/.gnupg/.gpg-agent-info
    export GPG_AGENT_INFO
else

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Clojure Destructuring Tutorial and Cheat Sheet

(Related blog post)

Simply put, destructuring in Clojure is a way extract values from a datastructure and bind them to symbols, without having to explicitly traverse the datstructure. It allows for elegant and concise Clojure code.

Vectors