pg_controldata displays control information of a PostgreSQL database cluster.

Usage:
  pg_controldata [OPTION] [DATADIR]

Options:
 [-D, --pgdata=]DATADIR  data directory
  -V, --version          output version information, then exit
  -?, --help             show this help, then exit

If no data directory (DATADIR) is specified, the environment variable PGDATA
is used.

Report bugs to <pgsql-bugs@lists.postgresql.org>.
PostgreSQL home page: <https://www.postgresql.org/>