<term><option>-C <replaceable>name</replaceable></option></term>

<listitem>

<para>

Returns the value ofa named run-time parameter, and exits.

Prints the value ofthe named run-time parameter, and exits.

(See the <option>-c</> option above for details.) This can

be used on a running server, and returns values from

<filename>postgresql.conf</>, modified by any parameters

supplied in this invocation. It does not reflect parameters

supplied when the cluster was started.

</para>

<para>

This option is meant for other programs that interact with a server

instance, such as <xref linkend="app-pg-ctl">, to query configuration

parameter values. User-facing applications should instead use <xref

linkend="sql-show"> or the <structname>pg_settings</structname> view.

</para>

</listitem>

</varlistentry>

printf(_(" -B NBUFFERS number of shared buffers\n"));

printf(_(" -c NAME=VALUE set run-time parameter\n"));

printf(_(" -C NAMEreturnrun-time parameter\n"));

printf(_(" -C NAMEprint value ofrun-time parameter, then exit\n"));

printf(_(" -d 1-5 debugging level\n"));

printf(_(" -D DATADIR database directory\n"));

printf(_(" -e use European date input format (DMY)\n"));