# install modules
npm install 

# install pm2 and nodemon 
npm install nodemon pm2 -g

# copy .env file
cp .env.localhost .env

# run service
pm2 start 'node index.js > output.log' --name 'Toll Plaza Socket Server'
pm2 stop [all | indexnumber]
pm2 restart [all | indexnumber]
pm2 list

# kill service at port 3001
sudo kill -9 `sudo lsof -t -i:3001`