rails 命令

常用示例

说明

rails is the command-line interface for the Ruby on Rails web application framework. It provides tools for creating, developing, and managing Rails applications through a unified interface. The command operates in two contexts: outside an application (primarily rails new for creating projects) and inside an application directory (all other commands). Within a project, commands are typically invoked via bin/rails to ensure the correct bundled version is used. Rails emphasizes convention over configuration, and its CLI reflects this by providing generators that create boilerplate code following Rails conventions. The framework integrates database management, testing, asset compilation, and server operation into cohesive command-line workflows.

参数

new _app_name_

Create a new Rails application with standard directory structure

server, s

Start the Puma web server (default port 3000)

console, c

Open an interactive IRB session with the application context

generate, g

Run code generators for models, controllers, migrations, etc.

destroy, d

Remove files created by a generator

db:migrate

Run pending database migrations

db:create

Create the database

db:seed

Load seed data from db/seeds.rb

db:setup

Create database, load schema, and seed data

routes

Display all defined routes

test

Run the test suite

--help, -h

Display help for any command

--version

Show the Rails version

-e, --environment _ENV_

Specify environment (development, test, production)

-p, --port _PORT_

Set server port (default 3000)