Which ones will run under Dos and or linux?

How are they different from each other?

To builders of sound editors, as always, please remember to include commands 
that duplicate mouse functions. Its easy enough if you make it a design goal 
from the start, and hell to retrofit, even if you say you can always 
do it later.

If you quote me, please put your comments first.
I have already listened to my questions.

Thanks.