Command-line prompt format

Windows

https://ss64.com/nt/prompt.html

Example

PROMPT=$E[1;37;42m(%USERNAME%)$P$E[;m$_$E[1;37;42m[$T$H$H$H$H$H$H]$E[;m$+$G

(yyc) c:\Windows
[15:00]>

$T is the timestamp with two digits below the decimal points in seconds. $H is "backspace". 6 $H after $T removes the "second" information in the time stamp (15:00:12.34 --> 15:00)

Bash

https://www.cyberciti.biz/tips/howto-linux-unix-bash-shell-setup-prompt.html