I won't get to this in Oil (without help) but I still think it's valid. The languages have so much overlap that they should just be combined. Of course that's what Perl was (leaving out Make), but Raku and Python 3 seem to have left a hole in that design space.
Shell, Awk, and Make Should Be Combined http://www.oilshell.org/blog/2016/11/13.html
Example Code in Shell, Awk, and Make http://www.oilshell.org/blog/2016/11/14.html