Using dbms_scheduler to run a lunix script

Hi,

I've got an issue trying to use dbms_scheduler to run liunx shell scripts on the OS

Here's some setup for a script in the DB:

CREATE table bob (a varchar2(100));

Here's a script test_script.sh

#!/bin/bash

echo "TEST"

sqlplus -s <user>/<pass> <<EOF

begin

 insert into bob (a) values ('TESTED');

 COMMIT;

end;

/

exit;

EOF

echo "************************************"

replace <user> and <pass> as appropriate

I created a directory called training_scripts in the oracle user home directory and stuck file in there.

I then tried running the following to run it:

begin

  dbms_scheduler.create_job(

    job_name => 'my_external_job',