Required help in setting sqlplus environment

Question

Hi,
I want some hint regarding settigns of sqlplus environment.
Following is script i run using unix .
--------------------------------------------------test.sql-----------------
set serveroutput on
set feedback off
DECLARE
min_id NUMBER:=&1;
max_id NUMBER :=&2;
student_id NUMBER := &3;
BEGIN
DBMS_OUTPUT.PUT_LINE('some usefull command');
END;
EXIT;
-------------------------------------End test.sql-------------------------------
I use following command to run this script.
sqlplus -s user/password@database @test.sql 10001 20000 5 > out.log
After running this command i get following output in out.log
old 3: min_id NUMBER:=&1;
new 3: min_id NUMBER:=10001;
old 4: max_id NUMBER :=&2;
new 4: max_id NUMBER :=20000;
old 5: student_id NUMBER := &3;
new 5: student_id NUMBER :=5;
'some usefull command'
My doubt is is there any way to suppress the junk created by sqlplus.
How to avoid following statement to be written in output.
old 3: min_id NUMBER:=&1;
new 3: min_id NUMBER:=10001;
old 4: max_id NUMBER :=&2;
new 4: max_id NUMBER :=20000;
old 5: student_id NUMBER := &3;
new 5: student_id NUMBER :=5;
Thanks
Rajiv

Answer 1

I am not sure what the intent of this is, or in what version you intend to utilize it, but this doesn't make any sense: At least as it is written.
The SQL*Plus environment should be set in glogin.sql and login.sql.
What you've posted, by way of examples, looks like schoolwork. Perhaps you can clarify if using the proper configuration files does not do what you want.