Install different directory issues

Thomas Carter <[email protected]>
Newsgroups gmane.comp.db.postgresql.general
Message-ID <CAJ-qEfnOu+00RT3T_4fR9ceEENmginaf3GE4Jkx+MRaY0yNnQw@mail.gmail.com> 
I installed Postgres to /app and now psql command not working under
Postgres user along with not knowing how to start the service like with a
traditional systemctl.

RHEL7
Postgres 10.11

Thanks for any help!
-- 
Tom Carter
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