Change log in prompt

$ open -e .bash_profile

If this is the first time you’re editing this file, it should be empty. Add this line to the file and save.

$ export PS1="\u$ "

Options for customising the prompt

Here are a few common flags you can use to customize your Terminal prompt:

• \d – Current date
• \t – Current time
• \h – Host name
• \# – Command number
• \u – User name
• \W – Current working directory (ie: Desktop/)
• \w – Current working directory with full path (ie: /Users/Admin/Desktop/)

https://medium.com/@ajaykarwal/edit-the-terminal-prompt-name-on-macos-4d80163be6a1


Add colors:https://www.cyberciti.biz/faq/bash-shell-change-the-color-of-my-shell-prompt-under-linux-or-unix/

Add bold font: Bold is set by 01 so you need to add 01; before each color specification: