---

sudo cp /etc/apt/sources.list.d/ubuntu.sources /etc/apt/sources.list.d/ubuntu.sources.a1-backup && \
sudo sed -i \
  -e 's|http://archive.ubuntu.com|https://archive.ubuntu.com|g' \
  -e 's|http://security.ubuntu.com|https://security.ubuntu.com|g' \
  /etc/apt/sources.list.d/ubuntu.sources && \
sudo apt update && \
sudo apt install -y curl && \
curl --version