$ npm install pm2 -g

$ pm2 start app.js

$ pm2 start app.js --watch [--ignore-watch /*/]

pm2 list

$ pm2 show <app_name>

$ pm2 restart app

$ NODE_ENV=production pm2 restart app --update-env

$ pm2 stop app

$ pm2 delete app

$ pm2 logs

$ pm2 env <pm_id>

$ pm2 startup

$ pm2 start app.js --name="name"
# or update name
$ pm2 restart app --name="new-name"

$ pm2 reset all

$ pm2 monitor

$ pm2 prettylist
# or
$ pm2 show <pm_id|app_name>