When I open the terminal in CentOS linux and use su - to work as the root user, I type in commands like journalctl that result in a lot of output.  The problem is, when I am done scrolling through the many lines of output, terminal just tells me the line number and does not give me an obvious way to get another command prompt.  How can I get a command prompt back in this situation without having to open a new terminal? 
toggling between output and command prompt in CentOS terminal
centos;terminal
I believe typing q, whether at the end or not, will return you to your console. Is this not the case on your machine?Edit: at least, less and journalctl behave this way for me on fedora 20. 