DOSBox defaults to PROMPT $P$G and does not offer a way to change it.
Batch files that make use of this command will print "Illegal command: PROMPT." to the screen.
Since PROMPT has been an internal command.com feature since the early days of DOS, its absence is noteworthy.
I can't think of any good ones, but DOS batch games DO exist, and they do make use of PROMPT.
I agree. I am now starting to use vDOS for apps and DOSBox for games. vDOS allows for a complete 4DOS command list. I would like DOSBox to allow a little more in the area of command line options. If I can customize the prompt, there would always be no question about which DOS emulator I'm in.