i feel i ought to repeat myself: you really ought to use:
type [command ...]
some problems with the manual:
* you have to type `man sh'. you cant type `man type'.
* sh(1) does not explain that `tracked alias' in the output of
`type' relates to the output of `hash'. see `hash' in sh(1).
some problems with the other commands:
* some are not a part of the shell. they cant tell you about shell stuff.
* some just echo back function names, etc.
* some are ksh(1) features. ksh(1) features are often buggy, etc.
