Don't be an NPC - use lEEt/OS!
Try it online!
lEEt/OS is a graphical shell and partially posix-compliant multitasking operating
environment that runs on top of a DOS kernel. The latest version can be downloaded
from this site. lEEt/OS is tested with FreeDOS 1.2 and ST-DOS,
but it may also work with other
DOS implementations. It can be compiled with Open Watcom compiler. 8086 binaries are also
available from this site.