A little bash that install Docker in .deb linux. For jessie and above.

installDocker.sh

#!/bin/bash

echo "Removendo versoes pre-existentes... "
sudo apt-get remove docker docker-engine docker.io

sudo apt-get update

sudo apt-get install \
     apt-transport-https \
     ca-certificates \
     curl \
     gnupg2 \
     software-properties-common

echo "Instalando Curl... "
sudo apt install -y curl

curl -fsSL https://download.docker.com/linux/debian/gpg | sudo apt-key add -

sudo add-apt-repository \
   "deb [arch=amd64] https://download.docker.com/linux/debian \
   $(lsb_release -cs) \
   stable"

sudo apt-get update

echo "Instalando Docker-ce... "
sudo apt-get install docker-ce