Yes, NVIDIA packages I would clean up and reinstall commonly, especially up upgrades between major versions like Ubuntu 18.04 → 20.04 LTS.
It looks like this was a desktop install the "" is just a line continuation, this should be all one line effectively. Also since you may be in a ‘unknown state’ after the Ubuntu update.
sudo rm -f /etc/apt/sources.list.d/{graphics,nvidia,cuda}*;
COLUMNS=200 dpkg -l | awk \ ‘/cuda|lib(accinj64|cu(blas|dart|dnn|fft|inj|pti|rand|solver|sparse)|magma|nccl|npp|nv[^p])|nv(idia|ml)|tensor(flow|board)|torch/{ print $2 }’ |
sudo xargs -or apt -y remove --purge
Then to reinstall Lambda Stack
LAMBDA_REPO=$(mktemp) &&
wget -O${LAMBDA_REPO} https://lambdalabs.com/static/misc/lambda-stack-repo.deb &&
sudo dpkg -i ${LAMBDA_REPO} && rm -f ${LAMBDA_REPO} &&
sudo apt-get -y update && sudo apt-get -y install lambda-stack-cuda