pm2 install

$ npm install pm2@latest -g
# or
$ yarn global add pm2
$ pm2 ecosystem
$ pm2 [list|ls|status]
$ pm2 logs --lines 200
$ pm2 restart app_name
$ pm2 reload app_name
$ pm2 stop app_name
$ pm2 delete app_name
$ pm2 start bashscript.sh
$ pm2 start python-app.py --watch
$ pm2 start binary-file -- --port 1520
$ pm2 start app.js -i max