rfong

mysql

• Max TIME is 839:59:59 (3023999 seconds), due to a 3-byte backwards compatibility hack with old versions of mysql. [1] [2]

rfong

no matter how long you've been using it, bash is an endless treasure trove of hidden gems thirsting to make your life better. here is a small tasting flight of favorite bash friends I've remembered to write down.

Navigation

My personal rule of thumb: if I've typed something more than twice, it's time to turn it into a macro.

When have you ever changed directories and not wanted to see the contents of your new location? Rarely.

# cd+ls, only the most used pair of commands of all time ever
function cl() {

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// Example:
//    go test <options> -cpuprofile cpu.prof -memprofile mem.prof ./...
//    go tool pprof  # Interactive console
//    go tool pprof -http=localhost:6060 cpu.prof  # Visualization

import (
  "flag"
  "log"
  "runtime"
  "runtime/pprof"

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"""
Simulate 'Cumulative' type relationshipRPG trials.
"""

import csv
import math
import random
import time
import unittest

rfong

Official walkthrough: Tour of Go

• 10 things you (probably) don't know about Go - Andrew Gerrand

Concurrency mindmap

• think of a channel as a way of creating a stream IO between two concurrent subroutines
• Go race detector
• locking with WaitGroup

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#!/bin/bash

brew update
brew upgrade

go get -u golint  # and maybe more

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#!/bin/bash

# OSX 10.12 broke brew; I just nuked it and reinstalled

# OSX 10.12 switched from GNU grep to FreeBSD grep, breaking `grep -Po`
brew install grep --with-default-names

# System Integrity Protection fucks up a lot of dev shit
sudo chown -R $USER /usr/local

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""" Display my IP address on an I2C OLED screen connected over GPIO """

import socket
import time

from PIL import Image
from PIL import ImageDraw
from PIL import ImageFont

import Adafruit_GPIO.SPI as SPI

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#!/bin/bash

cameras=(0 1 2)

function apply_cams() {
    # Apply `v4l2-ctl $@` to all cams
    #   Example usage: apply_cams -C focus_auto
    for cam in "${cameras[@]}"; do
        echo "/dev/video$cam"
        v4l2-ctl -d $cam $@

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# Solutions from https://www.quora.com/How-do-I-disable-iTunes-from-popping-up-in-Mac-OS

# Stop daemon
## Change permissions so it can't execute. This can be done from the command line using this command:
sudo chmod -x /System/Library/CoreServices/rcd.app/Contents/MacOS
## Or, unload it using this command:
launchctl unload -w /System/Library/LaunchAgents/com.apple.rcd.plist

# System Preferences > Users & Groups > Login Items --> remove iTunes Helper