can a linux program, running on the client side, generate data to load a temp table ?

v15.5 on linux

I've read about and tested a way for a query which calls a user function
which returns a temp table that gets its data from an external program.
Example...

CREATE OR REPLACE FUNCTION run_linux_script()
RETURNS TABLE (script_output text)
LANGUAGE plpgsql
AS $$
BEGIN
-- Create a temporary table for this session
CREATE TEMPORARY TABLE IF NOT EXISTS temp_script_results (
output_line text
);

-- Truncate in case it was used previously in the same session
TRUNCATE temp_script_results;

-- Execute the script and insert the output into the table
COPY temp_script_results (output_line)
FROM PROGRAM '/path/to/my/script/linux_script.pl';

-- Return the results to the calling user
RETURN QUERY SELECT output_line FROM temp_script_results;

-- Clean up
DROP TABLE temp_script_results;
END;
$$;

SELECT * FROM run_linux_script();

It runs, sort of, but fails because it can't find the "linux_script.pl"
script because it's looking for it on the server side.

My question is about whether or not I can get something like this to run on
the client side (where the script can be found).

Thanks in Advance :-)