Skip to content

Instantly share code, notes, and snippets.

View rphillips's full-sized avatar

Ryan Phillips rphillips

  • Red Hat
  • Austin, TX
View GitHub Profile
@staltz
staltz / introrx.md
Last active April 21, 2025 04:15
The introduction to Reactive Programming you've been missing
@Kartones
Kartones / postgres-cheatsheet.md
Last active April 21, 2025 03:52
PostgreSQL command line cheatsheet

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)
Mac OS X 10.9.2, Vagrant 1.5.1, VMWare Fusion 6.0.2
I had some intense difficulties getting this all to work. The VMs would boot
fine with gui=true, but then would fail as soon as I turned that off. Yet when
they failed, they were actually running just fine! I could ssh in, but neither
vagrant nor vmrun could find the running VMs! You would think that it would
give better errors, but no.
First off, most boxes you find online will be using the VMWare configuration 9,
which will only boot if you have gui=true the first boot, so you can upgrade it
#!/usr/bin/env bash
if [ $# -eq 0 ]; then
printf 1 "Usage: $(basename $0) [build-args [-- run-args [-- cmd-args] ] ]"
printf 1 " NOTE!!! the -rm-flag is hardcoded for build!"
fi
BUILD_ARG=()
RUN_ARG=()
CMD_ARG=()
@mattiaslundberg
mattiaslundberg / arch-linux-install
Last active February 10, 2025 13:16
Minimal instructions for installing arch linux on an UEFI system with full system encryption using dm-crypt and luks
# Install ARCH Linux with encrypted file-system and UEFI
# The official installation guide (https://wiki.archlinux.org/index.php/Installation_Guide) contains a more verbose description.
# Download the archiso image from https://www.archlinux.org/
# Copy to a usb-drive
dd if=archlinux.img of=/dev/sdX bs=16M && sync # on linux
# Boot from the usb. If the usb fails to boot, make sure that secure boot is disabled in the BIOS configuration.
# Set swedish keymap
@pascalpoitras
pascalpoitras / 1.md
Last active April 10, 2025 14:12
My WeeChat configuration

This configuration is not maintained anymore. You should think twice before using it, Breaking change and security issue will likely eventually happens as any abandonned project.

-- updated for luvit 2
local ffi = require('ffi')
local bit = require('bit')
local uv = require('uv')
local timer = require('timer')
local Object = require('core').Object
local utils = require('utils')
local libcurl = ffi.load('libcurl')
@monokrome
monokrome / commands
Last active December 17, 2018 22:33
Some of my weechat settings
/key bind meta-ctrl-I /go
/key unbind ctrl-W
/key bind ctrl-Wl /window right
/key bind ctrl-Wh /window left
/key bind ctrl-Wj /window down
/key bind ctrl-Wk /window up
/key bind ctrl-Wmeta2-C /window right
@rjemanuele
rjemanuele / mwpc.txt
Last active August 4, 2019 04:45
Milky Way Pound cake
I've never made the frosting. It's too rich.
Use "PAM with flour" baking spray.
Milky Way Pound cake
6 (2.15 ounce) Milky Way Bars
1 cup butter, divided
2 cups sugar
4 eggs
@jboner
jboner / latency.txt
Last active April 19, 2025 21:29
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD