I've been trying dosemu2, it's pretty good. Dosemu2 very badly needs better documentation, at least if the dosemu2 github is the starting point. Very basic things are not mentioned in the first documents you look at, like "exitemu" to exit the emulator and Ctrl-Alt-Home to grab/ungrab the mouse. The man page is incorrect for executing single commands, you need to type this to capture the output from a single command:

    dosemu -dumb -exec dir >foo

Or this if you want to see the output on the screen:

    dosemu -dumb -E dir