budlabs
https://stackoverflow.com/questions/1862510/how-can-the-last-commands-wall-time-be-put-in-the-bash-prompt/1862762#
https://www.gnu.org/software/bash/manual/html_node/Controlling-the-Prompt.html#Controlling-the-Prompt
https://www.davidpashley.com/articles/xterm-titles-with-bash/ ... https://www.youtube.com/watch?v=g4AfeQhRXrY
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