[1631] can't run bash script after production build

I was able to automate nuxt apps deployments to production, deployments are done this ease > i'm running this simple bash script on production server:

cd /home/user/app
git pull origin master
yarn
npm run build
pm2 restart "app"

for now the build command for nuxt has no end, so i can not restart the node server after building the app.

how to fix it?