pcp_pool_status
Example
Here is an example output:
$ pcp_pool_status -h localhost -U postgres name : listen_addresses value: localhost desc : host name(s) or IP address(es) to listen to name : port value: 9999 desc : pgpool accepting port number name : socket_dir value: /tmp desc : pgpool socket directory name : pcp_port value: 9898 desc : PCP port # to bind