Was it? Even if you discard stuff like tmux as already a GUI, you can still send whatever is running at the moment to the background with CTRL-Z and typing "bg" on any modern Unix system. "jobs" will then list all your processes, and "fg <ID>" will bring it to the foreground. I am sure this functionality predates most modern GUIs.
Was it? Even if you discard stuff like tmux as already a GUI, you can still send whatever is running at the moment to the background with CTRL-Z and typing "bg" on any modern Unix system. "jobs" will then list all your processes, and "fg <ID>" will bring it to the foreground. I am sure this functionality predates most modern GUIs.