initdb

I feel somewhat embarrassed to post this but I can't get past the first
post with Postgresql. I have installed onto a Debian testing system,
created a space for the database cluster on /usr/local/pgsql/data,
changed owner to postgres and changed permissions to 0700.

However, when I try `initdb -D /usr/local/pgsql/data' I get "Command not
found"

I've googled for this but found nothing useful.

Regards, John
--
War is God's way of teaching Americans geography
Ambrose Bierce (1842 - 1914)