sqlplus -s /nolog @doit.sql $rptfile $rptprd

conn / as sysdba
define spofle = &1
define rptprd = &2
alter session set nls_date_format='dd-Mon-yyyy hh24:mi:ss';
set trimspool on 
set tab off 
set pages 50 
set lines 512
set echo off
set feedback off
set verify off
set head on
--
break on action_name skip 1
spo &spofle
--
repheader center "---------- Report of Audited Actions -------"
repfooter center "---------- End of Report ------------"
select  
    <snip lengthy statement...>
;
--
exit

SQL> host type t.sql
define spofle = &1
define rptprd = &2
alter session set nls_date_format='dd-Mon-yyyy hh24:mi:ss';
set trimspool on
set tab off
set pages 10
set lines 512
set echo off
set feedback off
set verify off
set head on
--
break on action_name skip 1
spo t.lst
--
repheader center "---------- Report of Audited Actions -------"
repfooter center "---------- End of Report ------------"
select level from dual connect by level <= 15;
spool off

SQL> @t 1 1

--------- Report of Audited Actions -------
     LEVEL
----------
         1
         2
         3
         4
         5
         6
         7
     LEVEL
----------
         8
         9
        10
        11
        12
        13
        14
        15
     LEVEL
----------

   ---------- End of Report ------------
SQL> host type t.lst

--------- Report of Audited Actions -------
     LEVEL
----------
         1
         2
         3
         4
         5
         6
         7
     LEVEL
----------
         8
         9
        10
        11
        12
        13
        14
        15
     LEVEL
----------

   ---------- End of Report ------------

SQL>