Installed nodebb. Admin panel said "running version 1.19.7", upgrade to 3.10.3. I followed instuctions ...

bash -5c8782edea7f:/# curl -sL https://deb.nodesource.com/setup_lts.x | sudo -E bash -

sudo apt-get install -y nodejs

bash: curl: command not found

bash: sudo: command not found

bash: sudo: command not found