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Regular Expressions

Basic Syntax

• /.../: Start and end regex delimiters
• |: Alternation
• (): Grouping

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Remove MySQL completely

1. Open the Terminal

2. Use mysqldump to backup your databases

3. Check for MySQL processes with: ps -ax | grep mysql

4. Stop and kill any MySQL processes

5. Analyze MySQL on HomeBrew:

   brew remove mysql
   

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Unix Commands

Environment Control

cd d                         Change to directory d
mkdir d                      Create new directory d
rmdir d                      Remove directory d
mv f1 [f2...] d              Move file f to directory d
mv d1 d2                     Rename directory d1 as d2

passwd Change password

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Vim Commands Cheat Sheet

How to Exit

Command	Description
:q[uit]	Quit Vim. This fails when changes have been made.
:q[uit]!	Quit without writing.
:cq[uit]	Quit always, without writing.

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Install Apache with Homebrew

Installing Apache

# Start by stopping the built-in Apache, if it's running, and prevent it from starting on boot.
# This is one of very few times you'll need to use sudo:
sudo launchctl unload /System/Library/LaunchDaemons/org.apache.httpd.plist 2>/dev/null

# We need to tap homebrew-dupes because "homebrew-apache/httpd22" relies on "homebrew-dupes/zlib"

and install Apache 2.2 with the event MPM, and we'll use Homebrew's OpenSSL library

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Dev List Bookmarks

Attention: the list was moved to https://github.com/vitorbritto/dev-list

This page is not maintained anymore, please update your bookmarks.

---

Recently, I decided to organize my bookmarks. So, like a good fellow, I am sharing with you. I hope you enjoy!

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Step by Step (macOS + Homebrew)

1. Install and Check dependencies

brew install gnupg pinentry-mac

2. Create directory and give permissions

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#!/bin/bash


# ------------------------------------------------------------------------------
# | System                                                                     |
# ------------------------------------------------------------------------------

# Navigation
# -------------------

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<ErrorBoundary>
  <MyComponent />
</ErrorBoundary>

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class ErrorBoundary extends React.Component {
  
  constructor(props) {
    super(props);
    this.state = { hasError: false };
  }

  static getDerivedStateFromError(error) {
    // Update state so the next render will show the fallback UI.
    return { hasError: true };