Salesforce DX Developer Guide

How Salesforce Developer Experience (DX) Tooling Changes the Way You Work
Provide Developers Access to Salesforce DX Tools
Project Setup
Authorization
Metadata Coverage
Scratch Orgs
Sandboxes
Track Changes Between Your Project and Org
Work with Data
Salesforce DX MCP Server and Tools (Beta)
Development
Develop Against Any Org
Assign a Permission Set
Create Lightning Apps and Aura Components
Create Lightning Web Components
Create an Apex Class
Create an Apex Trigger
Create a Custom Object
Execute Anonymous Apex
Run Apex Tests
Build and Release Your App
Unlocked Packages
Continuous Integration
Troubleshoot Salesforce DX
Limitations for Salesforce DX
PDF

Create Lightning Apps and Aura Components

You can use Salesforce CLI to create Lightning apps and Aura components in your local Salesforce DX project. The generated files live in an aura directory in a package directory of your project.
  1. Open a terminal (macOS and Linux) or command prompt Windows and change to your Salesforce DX project directory.
  2. Create the aura directory in the location you want to generate the Lightning app and Aura components. For example, if you want to generate them in the default package directory, create the force-app/main/default/aura directory if it doesn’t exist.
  3. Create a Lightning app or an Aura component; specify the app or component name with the --name flag and the aura directory with the --output-dir flag. 
    1sf lightning generate app --name myApp --output-dir force-app/main/default/aura
    1sf lightning generate component --type aura --name myAuraComponent --output-dir force-app/main/default/aura

Use the project deploy start command to deploy the new Lightning app and Aura component to your org.

1sf project deploy start --metadata AuraDefinitionBundle:myApp --metadata AuraDefinitionBundle:myAuraComponent