nodejs see pm2 lis code example
Example 1: start stop restart pm2
pm2 start app.js --name "my-api"
pm2 start web.js --name "web-interface"
pm2 stop web-interface
pm3 restart web-interface
Example 2: pm2 install
$ pm2 restart app_name
$ pm2 reload app_name
$ pm2 stop app_name
$ pm2 delete app_name