Fixed terminal status lineS instead of shell prompt?

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http://unix.stackexchange.com – It is common to cram useful information in the Unix shell prompt, but I have too many things I want to keep an eye on to fit it all in one prompt: current Gnu screen window, current directory, current time, hostname, current git branch, phase of the moon, you-name-it. It would be saner to have a fixed status region at the bottom (or top) of the terminal to show all this information, and leave the prompt alone. (I wrote "fixed status region" rather than "fixed status line" because I don't want to limit myself to one line.) (This region, of course, would not be affected by normal interactive (HowTos)