I have an admin account and a user account I just created. I want to install some software onto the user account, however, it will not allow me to. What commands do I need to use in order to download software under user account as the administrator?

I thought about adding the user to the sudoers group but I'm not sure I want to do that unless its the only option. Or maybe log is as the administrator and install the software that way. I'm not sure about that either. Any help will be greatly appreciated.