first off: I am aware of this question
I want to open the "Ubuntu Software" I do have it installed, because I can see and open it from my menu-bar
picture of "Ubuntu Software" in menu-bar
I want to open it with the Terminal, because when I try to install "Dropbox" from Ubuntu Software, it just closes automatically. And now I want to see, if it works when I start it from the terminal.
I've tried all of these:
:~$ software-center
software-center: command not found
:~$ gnome-software
Command 'gnome-software' not found, but can be installed with:
sudo apt install gnome-software
:~$ ubuntu-software
ubuntu-software: command not found
what else could I try?
I am using Ubuntu 20.04.2 LTS on 64-bit, with GNOME Version 3.36.8