matthewhochler

#!/usr/bin/env bash
set -e

while [ true ]
do
  if ifconfig | pcregrep -M -o '^[^\t:]+(?=:([^\n]|\n\t)*status: active)' | grep awdl0;
  then
    echo "Shutting down awdl0..."
    ifconfig awdl0 down
  else

matthewhochler

Setup new MacOS installation

Homebrew

brew tap homebrew/dupes
brew update
brew upgrade
brew install \
  "awscli" \
  "bash" \

matthewhochler

images2epub.py

Converts a directory of images into a modern EPUB3 ebook. Use a tool to extract CBZ/CBR/CBT files and then run this program to generate a nice fixed-layout EPUB ebook of it. You can optionally set the reading direction to right-to-left (e.g. for manga). For Kobo ereaders, use the file extension .kepub.epub to get the modern reader and correct reading direction.

Usage

Install dependencies with pip install imagesize lxml

matthewhochler

# How to uninstall Razer Synapse 2 ( https://www.razerzone.com/synapse-2 )
# on OS X (10.11-10.13) (El Capitan, Sierra, High Sierra)
# without using Razer's official uninstall tool.

# Tested on OS X 10.11.5 in July 2016.
# Edited with additional steps for later OS X versions,
# contributed by commenters on this gist.

# Step 1: In your terminal: stop and remove launch agents
launchctl remove com.razer.rzupdater

matthewhochler

Keybase proof

I hereby claim:

• I am matthewhochler on github.
• I am mattyhochs (https://keybase.io/mattyhochs) on keybase.
• I have a public key ASCIeB6GtEN1EEn8ugJOLnkIQDcOEbnCxlPig8lbGQJYfQo

To claim this, I am signing this object:

matthewhochler

Video stabilization using VidStab and FFMPEG

Examples here use the default settings, see the VidStab readme on GitHub for more advanced instructions.

Here's an example video I made

Install ffmpeg with the vidstab plugin from homebrew

brew install ffmpeg --with-libvidstab

matthewhochler

ffmpeg

Converting Audio into Different Formats / Sample Rates

Minimal example: transcode from MP3 to WMA:
ffmpeg -i input.mp3 output.wma

You can get the list of supported formats with:
ffmpeg -formats

Convert WAV to MP3, mix down to mono (use 1 audio channel), set bit rate to 64 kbps and sample rate to 22050 Hz:

matthewhochler

How to reset PG Database on Heroku?

• Step 1: heroku restart
• Step 2: heroku pg:reset DATABASE (no need to change the DATABASE)
• Step 3: heroku run rake db:migrate
• Step 4: heroku run rake db:seed (if you have seed)

One liner

heroku restart; heroku pg:reset DATABASE --confirm APP-NAME; heroku run rake db:migrate

matthewhochler

How to reset PG Database on Heroku?

• Step 1: heroku restart
• Step 2: heroku pg:reset DATABASE (no need to change the DATABASE)
• Step 3: heroku run rake db:migrate
• Step 4: heroku run rake db:seed (if you have seed)

One liner

heroku restart; heroku pg:reset DATABASE --confirm APP-NAME; heroku run rake db:migrate

matthewhochler

DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )

Is a useful one-liner which will give you the full directory name of the script no matter where it is being called from

These will work as long as the last component of the path used to find the script is not a symlink (directory links are OK). If you want to also resolve any links to the script itself, you need a multi-line solution:

SOURCE="${BASH_SOURCE[0]}"
while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink