trigger to run external script

Chau, Artemis <artemis.chau@intel.com>

From: "Chau, Artemis" <artemis.chau@intel.com>
To: "'pgsql-novice@postgresql.org'" <pgsql-novice@postgresql.org>
Date: 2000-09-26T18:26:17Z
Lists: pgsql-novice
All,
I want to have a trigger for a table that whenever a new record is created
to run an external shell script on Unix.
Any suggestion?

-- Artemis