>I'd like to change it to be alias for whereis(1), with appropriate
>notes in manpage, mentioning historic implementation, the change and
>csh which builtin.
>
>Opinions ?

where(1) says:

     The path searched is the string returned by the sysctl(8) utility for the
     ``user.cs_path'' string.

which is...sub-optimal.  imho, which(1) should be a small binary that
simply checks the the path from the current environment (which is, of
course, inherits).

most shells (not all, i know) have "which" as a builtin, so it ought
not to make a difference.  of those that do not, they either have
aliasing (which is why which is a csh script in the first place), and
aliases ought to be included in the "search path" anyway (shells with
aliasing but no "which" can have a alias for "which" built for them).

shells that don't have "which" and don't have aliasing, will get what
they want from a binary.

did i miss anything?

again...mho.

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