GRANT execute on sys.dbms_sql TO system with admin option;

Does anyone know why this statement fails with this error.

GRANT execute on sys.dbms_sql TO system with admin option
*
ORA-00993: missing GRANT keyword


Basically what im trying to do is create a shell script to create users with execute permissions on sys.dbms_sql. I dont mind specifying the system login details in the script but i dont really want to specify the sys password

The error text below implies that you're missing a ";" on the prior statement in your script.

Error: ORA 993
Text: missing GRANT keyword
-------------------------------------------------------------------------------
Cause: The keyword WITH was specified at the end of a GRANT statement without
the keyword GRANT.
To grant privileges to a user and the permission to grant those
privileges to another user, you must specify the keywords WITH GRANT
OPTION at the end of the GRANT statement.
Action: Change the keyword WITH to the keywords WITH GRANT OPTION, then retry
the statement.
.