jahed

#http://stackoverflow.com/a/10797966/2913503
urlencode() {
    local data
    if [[ $# != 1 ]]; then
        echo "Usage: $0 string-to-urlencode"
        return 1
    fi
    data="$(curl -s -o /dev/null -w %{url_effective} --get --data-urlencode "$1" "")"
    if [[ $? != 3 ]]; then
        echo "Unexpected error" 1>&2

jahed

https://docs.google.com/spreadsheets/d/%s/export?gid=0&single=true&format=csv

https://docs.google.com/spreadsheets/d/{key}/gviz/tq?tqx=out:csv&sheet={sheet_name}

jahed

function ensureNodes(children) {
  if (Array.isArray(children[0])) {
    return ensureNodes(children[0])
  }

  return children
    .filter(child => !!child)
    .map(child => {
      if (typeof child === 'string') {
        return document.createTextNode(child);

jahed

ImageMagick Tricks

Cutting Up Tiles

convert image.png -crop 128x128 +repage +adjoin tile-%d.png

Autocrop Empty Space

jahed

NTFS drives are read-only

Caused by Windows' Fast Boot and affects all NTFS drives. Disable it in Windows settings and restart.

Temporary Fix:

sudo ntfsfix /dev/sdc1

jahed

#!/usr/bin/env bash
set -xeuo pipefail

function get_major_version () {
  echo "${1}" | grep -Po '[^0-9]+\K(\d+)' | head -n1
}

function get_version () {
  echo "${1}" | grep -Po '[^0-9]+\K([0-9.]+)' | head -n1
}

jahed

Add -mtime -2 to limit files by last modified time. -2 to means "in the last 2*24 hours from now".

jahed

Live Query JSON with fzf

echo '' | fzf --print-query --preview "cat *.json | jq {q}"

https://paweldu.dev/posts/fzf-live-repl/

https://github.com/junegunn/fzf

jahed

FFMPEG Tricks

Merging Multiple Audio Tracks

Useful for gamerips where music is split into multiple tracks for dynamic mixes and need to be merged together for a true track.

amerge is more flexible than amix so prefer using amerge.

-ac is to set the number of audio channels (e.g. -ac 2 for stereo)

jahed

Validating SRI Hashes

In case the browser starts complaining about invalid SRI hashes.

curl -s <URL> | openssl dgst -sha256 -binary | openssl enc -base64