Safe mode with command prompt option is totally depends on DOS shell, hence there is no need for separate command prompt..

Mac

Use "prompt $p$g" command.

when using command prompt, after you give it a command, press the enter button. Command prompt will then carry out the task and will automatically go to the next line.

PROMPT command is an internal command, which is used to change the MS-DOS prompt. Through, the system displays the prompt bu default, when you start the computer.