telekosmos

iconv -c -t UTF-8 <file> | tr -dC '[:print:]\t\n' | awk '{for(i = 1; i <= NF; i++) {a[$i]++}} END {for(k in a) if(a[k] >= 1) {print  k, a[k]}}' | sort -n -k2 --reverse | less

telekosmos

const fn = ({ a, o }) => ({a, ...o});

const obj = { a:1, o: { b: 2, c: 3 } };
const r = fn(obj);
// r = { a: 1, b: 2, c: 3 }

telekosmos

// doesn't work
const counter = {
  val: 0,
  next: () => ++this.val, // eslint-disable-line no-plusplus
};
counter.val; // 0
counter.next();
counter.val; // 0

// DOES work

telekosmos

#!/usr/bin/python

from azure.storage import BlobService
import argparse

parser = argparse.ArgumentParser()
parser.add_argument("container", help="the blob container")
parser.add_argument("blob", help="the blob name")
parser.add_argument("-s", "--snapshot", help="take a new snapshot", action="store_true")
parser.add_argument("-d", "--delete", help="delete a snapshot")

telekosmos

Unix shell command output redirects

• > file redirects stdout to file
• 1> file redirects stdout to file
• 2> file redirects stderr to file
• &> file redirects stdout and stderr to file

telekosmos

Kafka Broker creation with Docker Compose

Using from https://github.com/wurstmeister/kafka-docker.git and docker-compose.yml is:

version: '2'
services:
  zookeeper:
    image: wurstmeister/zookeeper
    ports:
      - "2181:2181"
    volumes:

telekosmos

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

telekosmos

You'll get the same exception if the index was created defining a PRIMARY KEY or UNIQUE constraint (ref).

In that case the simple solution is to use the ALTER-TABLE-command instead:

ALTER TABLE tbl1 DROP CONSTRAINT ix_cox

telekosmos

find . -name "node_modules" -type d -prune -exec rm -rf '{}' +

telekosmos

/*
 * AWS Sdk KMS spike: (assuming node v6.6+)
 * 1 - Create master key at KMS
 * 2 - Copy alias or ARN
 * 3 - run this i.e.
 * $ node spike.js KEY_ALIAS YOUR_PLAINTEXT_TO_ENCRYPT
 * 
 * Taken from https://gist.github.com/raytung/f7dc78bb4310d02217111246da8cfdb3
 */
const AWS = require('aws-sdk');