InstallNginx.sh

#!/bin/bash

curl_check ()
{
  echo "Checking for curl..."
  if command -v curl > /dev/null; then
    echo "Detected curl..."
  else
    echo "Installing curl..."
    apt-get install -q -y curl
  fi
}

wget_check ()
{
  echo "Checking for wget..."
  if command -v wget > /dev/null; then
    echo "Detected wget..."
  else
    echo "Installing wget..."
    apt-get install -q -y wget
  fi
}

install_debian_keyring ()
{
  if [ "${os}" = "debian" ]; then
    echo "Installing debian-archive-keyring which is needed for installing "
    echo "apt-transport-https on many Debian systems."
    apt-get install -y debian-archive-keyring &> /dev/null
  fi
}

main ()
{
curl_check
wget_check

install_debian_keyring

echo -n "Installing apt-transport-https... "
apt-get install -y apt-transport-https &> /dev/null
echo "done."

cd /tmp
wget https://nginx.org/keys/nginx_signing.key
apt-key add nginx_signing.key
rm nginx_signing.key

cat <<EOF > /etc/apt/sources.list.d/nginx.list
deb https://nginx.org/packages/ubuntu/ xenial nginx
deb-src https://nginx.org/packages/ubuntu/ xenial nginx
EOF

echo -n "Running apt-get update... "
apt-get update &> /dev/null
echo -n "Done"
apt-get install nginx -yq

echo -n "Nginx is is now installed"
}

sudo bash -c "$(declare -f); main"

curl -s https://gist.github.com/ChrisMcKee/dba6ec16f21df98068b24fab0642930a/raw/c3c648cad09ac7c6a6769f58ddacee1e635b9a28/InstallNginx.sh | sudo bash