> I hit a similar problem recently, however the proposed solution does not work:
> ms:> ksh
> ms> builtin -d vmap
> ms> builtin vmap
> builtin: vmap: not found
>
> Maybe commands built into the ksh binary itself cannot be restored that way.
If ksh93 is built statically and you delete a built-in, then you
need to specify the shared library to load to find the builtin.
For example,
builtin -d vpath
builtin -f shell vpath
The -f shell will load in the dynamic shared library libshell and find
the entry point there.
David Korn
dgk at research.att.com