DOS emulator for different platforms including linux.
DOSbox can control how many CPU cycles it emulates, or specify other machine settings such as graphics, memory, and sound. The vast majority of software ever written for DOS (including Windows 1.x, 2.x, and 3.x) will run on DOSBox.
install
Install with Synaptic or apt install dosbox
usage
run dosbox from the menu
the Z drive is the virtual drive that contains all of the commands used by DOSBox.
mount a directory for your dos files
mount c ~/DOS
In the example the directory on our file system /home/username/DOS