andreasvirkus

export const ordinal = (num) => {
  const suffix = ['th', 'st', 'nd', 'rd']
  const value = val % 100

  return val + (suffix[(value - 20) % 10] || suffix[value] || suffix[0])
}

andreasvirkus

const prettier = require("prettier");

const pluginName = "HandleChunkLoadFailurePlugin";

/**
 * This Webpack plugin calls `window._chunkHandler.handleVersionChange()` when loading a chunk fails
 */
class HandleChunkLoadFailurePlugin {
  constructor(options = {}) {
    this.options = Object.assign({}, options);

andreasvirkus

# Command to check access count per unique IP
tail -n 10000 /var/log/apache2/access.log | awk '{print $1}'| sort| uniq -c| sort -nr| head -n 10

# Command to check access per unique pathname
awk {'print $7'} /var/log/apache2/access.log | sort -nk1 | uniq -c | less

andreasvirkus

SELECT table_schema
  AS "Database", SUM(data_length + index_length) / 1024 / 1024 
  AS "Size (MB)" 
FROM information_schema.TABLES 
GROUP BY table_schema;

andreasvirkus

import crypto from 'crypto'

const generateChecksum = str =>
  crypto
    .createHash('sha256')
    .update(str, 'utf8')
    .digest('base64')
const script =
  'if (localStorage.getItem("theme")) document.documentElement.dataset.theme = localStorage.getItem("theme")'

andreasvirkus

# Prune all log files whose modified time is older than 6 days
find /var/log -mindepth 1 -mtime +5 -delete

andreasvirkus

andreasvirkus

for f in cis-*; do mv "$f" "CL${f#cis-}"; done

andreasvirkus

export const timeSinceNow = (timestamp) => {
  const current = new Date()
  const previous = new Date(timestamp * 1000)
  const msPerMinute = 60 * 1000
  const msPerHour = msPerMinute * 60
  const msPerDay = msPerHour * 24
  const msPerMonth = msPerDay * 30
  const msPerYear = msPerDay * 365

  const elapsed = current - previous

andreasvirkus

brew install docker docker-machine$ brew cask install virtualbox
docker-machine create --driver virtualbox default
docker-machine env default
eval "$(docker-machine env default)"
docker run hello-world
docker-machine stop default