Install nvm and NodeJS using AWS EC2 user data script

user-data.sh

#!/bin/bash
apt-get -y update
cat > /tmp/subscript.sh << EOF
# START UBUNTU USERSPACE
echo "Setting up NodeJS Environment"
curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.9/install.sh | bash
echo 'export NVM_DIR="/home/ubuntu/.nvm"' >> /home/ubuntu/.bashrc
echo '[ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh"  # This loads nvm' >> /home/ubuntu/.bashrc
# Dot source the files to ensure that variables are available within the current shell
. /home/ubuntu/.nvm/nvm.sh
. /home/ubuntu/.profile
. /home/ubuntu/.bashrc
# Install NVM, NPM, Node.JS & Grunt
nvm install --lts
nvm ls
EOF

chown ubuntu:ubuntu /tmp/subscript.sh && chmod a+x /tmp/subscript.sh
sleep 1; su - ubuntu -c "/tmp/subscript.sh"

Very top! Thanks.

Notice that the "$NVM_DIR" in below line should be replaced to "$NVM_DIR" like:
echo '[ -s "\$NVM_DIR/nvm.sh" ] && . "\$NVM_DIR/nvm.sh" # This loads nvm' >> /home/ubuntu/.bashrc

This doesn't work on ec2 ubuntu 20.
Lines
echo 'export NVM_DIR="/home/ubuntu/.nvm"' >> /home/ubuntu/.bashrc echo '[ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh" # This loads nvm' >> /home/ubuntu/.bashrc
return error:
Cannot create /home/ubuntu/.bashrc: Permission denied

Thank you so much! This works for me in Ubuntu 22.04 through EC2 User Data