How can install Odoo 13 on ubuntu 20.04

I am trying to install odoo 13 on ubuntu 20.04 and it gives me this error when starting the installation, it has to do with the permissions from what I understand...

--2020-05-24 17:15:26--  https://nightly.odoo.com/odoo.key
Resolving nightly.odoo.com (nightly.odoo.com)... 178.33.123.40
Connecting to nightly.odoo.com (nightly.odoo.com)|178.33.123.40|:443... E: This command can only be used by root.
connected.
HTTP request sent, awaiting response... 200 OK
Length: 3112 (3,0K) [application/octet-stream]
Saving to: ‘STDOUT’

-                     0%[                    ]       0  --.-KB/s    in 0s      


Cannot write to ‘-’ (Success). ```

Solution

The issue here seemed to be that you are executing statements with a normal user but the script needs superuser privileges.

So, you should do this:

Type pwd in your terminal. You will see the output to be the directory you are in currently. e.g. /home/bob. Write that down somewhere
Type sudo su - and hit enter. If you are asked for a password, type your password
That'll drop you into root user. Then, type cd /home/bob or whatever directory it was that you noted down previously
Then, run remaining commands. You will be running them as root
Once installation is complete, type exit and hit enter to exit out of root and get back to your normal user.

Be careful to run commands from a trustworthy source.