This is clever given what we have, but it seems like the wrong solution to the problem.

I already have a PATH order. What would be nice is if typing say `sc` gave me the first `sc` program, but typing `,sc` gave me the one after that.

This would generalize, so if I were stuck with cough several pythons I could call them with `python`, `,python`, `,,python` and so forth.

This would be a shell-level patch but surely not an impossible one.

Ironically, the one person whose workflow this would clobber is the one who wrote this blog post!