suse man page for pg_controldata

PG_CONTROLDATA(1)					  PostgreSQL Server Applications					 PG_CONTROLDATA(1)

NAME
       pg_controldata - display control information of a PostgreSQL database cluster

SYNOPSIS
       pg_controldata [ datadir ]

DESCRIPTION
       pg_controldata prints information initialized during initdb, such as the catalog version.  It also shows information about write-ahead log-
       ging and checkpoint processing. This information is cluster-wide, and not specific to any one database.

       This utility can only be run by the user who initialized the cluster because it requires read access to the data directory.  You can  spec-
       ify the data directory on the command line, or use the environment variable PGDATA.

ENVIRONMENT
       PGDATA Default data directory location

Application							    2010-05-14							 PG_CONTROLDATA(1)