PM2 Cheat Sheet

A quick reference guide for PM2 (Process Manager 2), a production process manager for Node.js applications.

Installation

First, you need to install PM2 globally using npm.

npm install pm2 -g

Command	Description
`pm2 start app.js`	Start an application.
`pm2 start app.js --name "my-app"`	Start an application with a custom name.
`pm2 start app.js --watch`	Start an application and watch for file changes.
`pm2 ls` or `pm2 list`	List all running processes.
`pm2 stop <id_or_name>`	Stop a specific process.
`pm2 restart <id_or_name>`	Restart a specific process.
`pm2 reload <id_or_name>`	Reload a process with 0s downtime.
`pm2 delete <id_or_name>`	Stop and delete a process from the list.
`pm2 stop all`	Stop all processes.
`pm2 restart all`	Restart all processes.
`pm2 delete all`	Stop and delete all processes.

Command	Description
`pm2 monit`	Open a real-time monitoring dashboard.
`pm2 show <id_or_name>`	Show detailed information about a process.
`pm2 logs`	Display logs for all processes.
`pm2 logs <id_or_name>`	Display logs for a specific process.
`pm2 logs --lines 200`	Display the last 200 lines of logs.
`pm2 flush`	Clear all log files.

Note

You can also tail log files directly. The default path is usually ~/.pm2/logs/ or /var/log/pm2/.

tail -f /var/log/pm2/my-app-0.log

To ensure your applications restart automatically after a server reboot.

Command	Description
`pm2 startup`	Generate a startup script for your OS.
`pm2 save`	Save the current process list.
`pm2 resurrect`	Restore previously saved processes.
`pm2 unstartup`	Disable the startup script.

To run your application in cluster mode and take advantage of multi-core systems.

# Start app in cluster mode, using all available CPUs
pm2 start app.js -i max

# Start app with a specific number of instances
pm2 start app.js -i 4