Many common commands like mklink, mkdir, rmdir, del, rename, move, copy and others aren't standalone programs — they're built into the cmd shell. That's why you couldn't run them directly through su; you had to use a command like su cmd /C del .... With the latest Super User v1.2.3 update, this is handled automatically for all known built-ins — no manual workaround needed.

Download: sucmd.7z (18KB). Project page →