Illustrating BrowserUK's warning that your success will depend on just how just "how like" the next code to be converted is to the example your open-ended question:

A regex simply can't translate a *nix-ish perl -E '`stat \usr\bin\foo;`' to something a stock M$ Windows system will understand and act on properly unless it's custom-built to deal with that particular approach... and the custom regex will fail on many (most) variants.