mrother

Kafka Cheat Sheet

Display Topic Information

$ kafka-topics.sh --describe --zookeeper localhost:2181 --topic beacon
Topic:beacon	PartitionCount:6	ReplicationFactor:1	Configs:
	Topic: beacon	Partition: 0	Leader: 1	Replicas: 1	Isr: 1
	Topic: beacon	Partition: 1	Leader: 1	Replicas: 1	Isr: 1

mrother

Path to WSL2 VHD: 
C:\Users\<user>\AppData\Local\Packages\CanonicalGroupLimited.UbuntuonWindows_79rhkp1fndgsc\LocalState
or
%appdata%\..\Local\Packages\CanonicalGroupLimited.UbuntuonWindows_79rhkp1fndgsc\LocalState

wsl --shutdown
diskpart
# open window Diskpart
select vdisk file=".\ext4.vhdx"
attach vdisk readonly

mrother

1) Pair ALL bluetooth devices in linux (it is to have the files you will need to edit later)

2) Pair ALL bluetooth devices in Windows 10. If you know how, get the MAC address id from your bluethooth keyboard, we will need it later

3) Reboot and go back to Linux

4) Install chntpw package, this is needed to read the registry keys from Wintendo

sudo apt-get install chntpw

mrother

Mysqldump from Docker container

docker exec -i mysql_container mysqldump -uroot -proot --databases database_name --skip-comments > /path/to/my/dump.sql

OBS

• This will generate a dump.sql file in your host machine. Awesome, eh?
• Avoid using --compact on your dump. This will make MySQL check your constraints which will cause troubles when reading your file (damm you MySQL). And don't use --force to fix this scenario: recreate your dump without --compact ¯_(ツ)_/¯

mrother

Code is clean if it can be understood easily – by everyone on the team. Clean code can be read and enhanced by a developer other than its original author. With understandability comes readability, changeability, extensibility and maintainability.

---

General rules

1. Follow standard conventions.
2. Keep it simple stupid. Simpler is always better. Reduce complexity as much as possible.
3. Boy scout rule. Leave the campground cleaner than you found it.
4. Always find root cause. Always look for the root cause of a problem.

Design rules

mrother

# force HTTPS and www.
RewriteEngine On
RewriteCond %{HTTP_HOST} (?!^www\.)^(.+)$ [OR]
RewriteCond %{HTTPS} off
RewriteRule ^ https://www.%1%{REQUEST_URI} [R=301,L]


# alternative way
RewriteCond %{HTTP_HOST} !^$
RewriteCond %{HTTP_HOST} !^www\. [NC]

mrother

# coding: utf-8

# Copyright 2015 Álvaro Justen <https://github.com/turicas/rows/>
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation, either version 3 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,

mrother

  $("#parsleyForm").parsley({
    errorClass: 'has-danger',
    successClass: 'has-success',
    classHandler: function(ParsleyField) {
        return ParsleyField.$element.parents('.form-group');
    },
    errorsContainer: function(ParsleyField) {
        return ParsleyField.$element.parents('.form-group');
    },
    errorsWrapper: '<span class="text-help">',

mrother

<script type="text/javascript" src="https://stc.pagseguro.uol.com.br/pagseguro/api/v2/checkout/pagseguro.directpayment.js"></script>
<script type="text/javascript">

    var paymentModule = 'pagseguro_app';

    checkoutCallbacks.add(pagseguroCheckout);

    function pagseguroCheckout() {

        if ($('input[name=module]').val() == paymentModule) {

mrother

<select name="estados-brasil">
	<option value="AC">Acre</option>
	<option value="AL">Alagoas</option>
	<option value="AP">Amapá</option>
	<option value="AM">Amazonas</option>
	<option value="BA">Bahia</option>
	<option value="CE">Ceará</option>
	<option value="DF">Distrito Federal</option>
	<option value="ES">Espírito Santo</option>
	<option value="GO">Goiás</option>