Great article how to style your Bash prompt. Make sure you are using Bash shell, because you could be using another shell. Use this to display your current shell. Just type “bash” to start using Bash shell.

<pre lang="bash">echo $0

I use the prompt style below. See the result underneath PS1. You may have to exit and re-enter your Terminal to see results.

<pre lang="bash">PS1="\u@\h:\w: "