Docker installation on Linux Mint 19.2 doesn't work [closed]

Question

Just got a fresh Linux mint 19.2 installed, i needed docker so i went to the docker doc and followed the process.

https://docs.docker.com/install/linux/docker-ce/ubuntu/

everything went well until step 4 of the repository set up.

on the 4 step it says "Malformed input, repository not added."

I've changed "$(lsb_release -cs)" to "tina" and "tara" still doesn't work.

the 4th step to set up the repository:

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

Answer 1

sudo nano /etc/apt/sources.list.d/additional-repositories.list

add the following line in the file

deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable

then,

sudo apt update

you know the rest of the steps. Good luck!

Answer 2

Leo's answer is very widely accepted but for some reason his solution doesn't work in my machine which is run by Linux Mint 19.3 Chinamon. So after doing some research I came out with this solution.

First Run this

echo -e "\ndeb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable" | sudo tee -a /etc/apt/sources.list

and then update the package index.

sudo apt-get update