However, I don't have that command on my 10.2.4 system either.
"Deprecated: Mac OS X < 10.2.x"
However, if you are not able to find other commands, be sure that the PATH environment variable includes the path to the command you are interested in
(to see existing env vars)
(unfortunately, this dumps you into 'man tcsh' and you have to scroll or search to find the setenv description:
setenv [name [value]]
Without arguments, prints the names and values of
all environment variables. Given name, sets the
environment variable name to value or, without
value, to the null string.
setenv PATH /path/to/kmodstat:$PATH