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rails:tldr:55c9d
The command "rails server" is a command used in Ruby on Rails applications to start a local development server.
When you run the command "rails server" in the terminal, it starts a server that listens for incoming HTTP requests on a specified port (usually port 3000 by default). This server allows you to run your Rails application locally and access it through your web browser.
The "rails server" command does several things behind the scenes, such as loading the Rails application, initializing the database connection, and setting up various middleware and routing. It then starts a web server, typically WEBrick, which handles incoming requests and sends back the appropriate responses.
Once the server is running, you can open your web browser and visit "http://localhost:3000" (or a different port if specified) to see your Rails application live and interact with it as if it were hosted on a remote server.
The server continues to run until you stop it manually, usually by pressing "Ctrl + C" in the terminal.