I am getting some permission issues using Docker and the following documentation suggests some command to run and one of them is su -s ${USER} but it does not work since the output is that there is no file or folder of that type, may you help me? I am on Ubuntu 16.04
This is the documentation I was following https://www.digitalocean.com/community/questions/how-to-fix-docker-got-permission-denied-while-trying-to-connect-to-the-docker-daemon-socket
You can check out some post-installation steps here on how to allow docker runtime to run without being root.
TLDR assuming you have root permissions
sudo groupadd docker # add the docker group if not already extant
sudo usermod -aG docker $USER # add the user to the group docker
exec $SHELL # reload your shell