postgresql-10 10.6-0ubuntu0.18.04.1 / usr / lib / postgresql / 10 / bin / postmaster

/usr/lib/postgresql/10/bin/postmaster is in postgresql-10 10.6-0ubuntu0.18.04.1.

This file is owned by root:root, with mode 0o777.

It is a symlink to /usr/lib/postgresql/10/bin/postgres