I am new to Ubuntu and Docker. Trying to install Docker in Ubuntu 22.04 LTS using Virtual Box. Following instructions for Docker’s apt repository method at docker web site for ubuntu.
I think the problem is in the step to set up the repository. The code for this step is:
"> echo \
“deb [arch=”$(dpkg --print-architecture)" signed-by=/etc/apt/keyrings/docker/gpg] Index of linux/ubuntu/
“$(. /etc/os-release && echo “UBUNTU_CODENAME”)” stable " |
sudo tee /etc/apt/sources.list.d/docker.list > /dev/null"
I get no response from this, which, I think, suggests it worked without exception.
Then I run sudo apt upgrade and it gives me the following error:
“Malformed entry 1 in list file /etc/apt/sources.list.d/docker.list([option] not assignment)
The list of sources could not be read”
I think the error is in this step, but since I am copying it directly out of the instructions on docker.com, I have no idea how to resolve and could not find it listed as a problem on this site. Please advise. Thanks in advance.