Where is initdb?

Hello List,

I have installed Postgresql 7.4 on a Suse 9.0 system using apt.
I cannot do this:

/usr/local/pgsql/bin/initdb -D /usr/local/pgsql/data

Because there is no "/pgsql/bin/initdb" nor /pgsql/bin/ on my system.
Since apt did not create these directories how can I do it manually?
Thanks,
Jerome