Pre-Requisites

• I'll use Homebrew as the package manager.

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

• Use .zshrc file if we have or if not just create it, by default we can use the vim editor

# To create the file
vim ~/.zshrc
# :w to save it.

Install Ruby

• Installing rbenvfor ruby:

brew install rbenv ruby-build

• To use rbenv every time we create a new terminal session we set

echo 'if which rbenv > /dev/null; then eval "$(rbenv init -)"; fi' >> ~/.zshrc

• Save the changes:

source ~/.zshrc

• Installing Ruby:

rbenv install 3.1.2

Note: The Ruby version can be found in the official Documentation

• Make Ruby's version as global:

rbenv global 3.1.2

• Save the changes:

source .zshrc

Note: To see if it was installed right we type:

ruby -v

Installing Rails

By installing ruby we can use the gem package manager, which contains rails:

• Install Rails

gem install rails

• Reload rbenv to use the command rails

rbenv rehash

Note: If we install rails right, we can type:

rails -v

Create and run a new rails project.

• Creating the project:

rails new proyect-name

Note: As default rails use the SQLite database when a new project is created, we can use our own databases, such as MySQL, PostgreSQL, MongoDB, etc. And we can set it by typing:

rails new proyect-name mysql

• Create a database for the project:

rails db:create

Note: If we a database with password, we have to configured the file config/database.yml, and change the data from the user (for developer purposes root) and the password. So by making saving this changes we use rails db:create

• Running the server:

rails server