pm2:tldr:29d38

The command "pm2 restart application_name" is used to restart a Node.js application using the process manager module (PM2).

Here's a breakdown of the command:

• "pm2" is a process manager for Node.js applications. It allows you to manage and monitor multiple Node.js processes with features like automatic restarts, load balancing, and log management.
• "restart" is the command instructing PM2 to restart the specified application.
• "${application_name}" is a placeholder for the actual name of your application. You need to replace it with the name of your specific application. For example, if your application is named "myapp", the command becomes "pm2 restart myapp".

When you run this command, PM2 will restart the specified application by stopping the existing process and starting it again from scratch. This can be useful after making changes to the application's code or configuration, as it ensures that the changes take effect without manually stopping and starting the application.